bulb definition biology

Bulb, in botany, a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. Soil preparation is important when taking care of tulips. It also contains hormones that affect hair growth and structure during different stages of life, like puberty. Olfactory Bulbs Smell is an interesting sense, for unlike vision or sound, in which interpretation is so important, smell is more straightforward. 1. Many of the flowering bulbs we plant in the fall are true bulbs. Bulb-producing species are especially abundant in the lily (Liliaceae) and amaryllis (Amaryllidaceae) families. Plant corms with the pointed side up approximately four times as deep as the diameter of the structure. In case of garlic, the bulb consists of an aggregate of bulblets or cloves, each covered by its individual tunic. One type, typified by the onion, has a thin papery covering protecting its fleshy leaves. Developing stem: primitive stage of the stem of the tulip. Bulb (noun) a spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid. Hair bulb definition: the end of a hair follicle containing active hair-growing cells; situated under the skin | Meaning, pronunciation, translations and examples The filament. bulb definition: 1. a round root of some plants from which the plant grows: 2. a light bulb 3. a round root of some…. Wrap seeds in a moist paper towel, wait 5-10 days, and count how many seeds germinate. Found insidec01 BLBS063-Sinha September 8, 2010 10:6 Trim: 246mm×189mm Biology and Classification of Vegetables 11 Table 1.2 Definitions of selected terms relating to ... Use the chart above to determine exactly how many lumens are in a watt and vice versa. ... A bulb, which functions as an underground storage unit, is a modification of a stem that has the appearance of enlarged fleshy leaves emerging from the stem or surrounding the base of the stem, as seen in the iris. the anterior and slightly enlarged end of the olfactory tract, from which the cranial nerves concerned with the sense of smell originate. Found inside – Page 48Define the term energy and state its Sl unit . 2. ... Give one example of each alongwith its definition . 12. ... Electric bulb j . (bŭlb) n. 1. noun. A smaller light was needed, and in 1880 Thomas Edison patented the first commercially viable incandescent light bulb. Biology Lab Safety Rules 33 Terms. Plant Biology any of certain similar plants. The center bud is the future flower. Electrician Andrew Ridley explains the figures, In hospitality retrofits, LEDs get closer to incandescents: with a billion incandescent bulbs primed for replacement in the hospitality market alone, LED dimming must satisfy a demanding demographic. Because he was below “C” level. The end tip of the runner can produce buds that develop into new plants that are clones. The filament bulb is used, for example, in a car headlight or for lighting in houses. ... Plant Biology a plant, Allium cepa, of the amaryllis family, having an edible, succulent, pungent bulb. The bulb is the stocking-like structure that surrounds the papilla and germinal matrix. Structure of light bulbs: The light bulb consists of three main parts which are the filament, the glass bulb and the base of the light bulb. Axillary buds occur at places. 4. The Apium graveolens is plant species in the family Apiaceae, and yields two important vegetables known as celery & celeriac. Found inside – Page 7Insist that the definition of life span includes from birth to natural ... is known as: (a) Runner (b) Bulbil (c) Rhizome (d) Bulb Ans. (c) Rhizome Q. 6. Bulbs have a bud surrounded by layers of fleshy leaves. Usually such a tunic is derived from the bases of sacrificial dead leaves, often cataphylls specialised for the purpose and dying in place. An auxin may be one of many molecules, but all auxin molecules are involved in some sort of cellular regulation. The cells start to elongate and divide, bringing the root and radicle out of the seed. How many biologists does it take to change a light bulb? Some lateral roots of mangroves become specialized as pneumatophores in saline mud flats; pneumatophores are…. Bulbs are usually rounded or egg-shaped. Hair bulb definition: the end of a hair follicle containing active hair-growing cells; situated under the skin | Meaning, pronunciation, translations and examples Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. The bulbs may be tunicated or scaly. Its structure is made up of five layers. Melanocyte-stimulating hormone plays an import … Science lovers appreciate these types of riddles because they stimulate the mind while relating to the topic of science. One or more buds are present in the AXILSof the scale leaves and in the spring these develop into new shoots, utilizing the stored food material. An auxin is a plant hormone derived from the amino acid tryptophan. Corm: Boundless Biology. Climbing plants often grip their supports with specialized adventitious roots. For air-breathing animals, the... Full article >>> Incubator Definition. Found inside – Page 381... high power objective ; l - p o , low illumination is natural daylight or a diffuse bulb . ... The definition of the image will then be at its best . Vegetative propagation may occur naturally through the development of rhizomes. Hypothesis: When the temperature of the filament bulb increases, its resistance increases. Dig the area and loosen the soil about a foot (30 cm.) The bulb crops include plants such as the tulip, hyacinth, narcissus, iris, daylily, and dahlia. Olfactory bulb is a nervous structure, a part of. Bulbs are of two types, tunicated and scaly. Found inside – Page 123... longer period than one of silver , and the definition is extremely perfect . ... may form a known angle with the centre of the bulb of the thermometer . Found inside – Page 35... cover the bulb with a membrane , and invert in a bottle of water , as already ... We may give the following as a definition of the process we are ... a short, specialized underground stem in which nutrients (particularly sugars) are stored in fleshy scale leaves overlapping the stem. Found inside – Page 243Including the Pronunciation, Accentuation, Derivation, and Definition of the Terms ... above - ground parts of plants , as the bulblets of some ( Thoma . ) ... The term leaf refers to the organ that forms the main lateral appendage on the stem of vascular plants. The term leaf refers to the organ that forms the main lateral appendage on the stem of vascular plants. Found inside – Page 985PAGE PAGE Branches - - I32 Bryophyta, definition of 637 – of limited growth ... 852 Bulbochaete 646 Broca's area 386, 448 Bulbus arteriosus 313 Broccoli . The Invention of the Light Bulb: Davy, Swan and Edison. Found inside – Page 8Definition of life span; life span of a few organisms (banana, rice, rose, ... of water hyacinth, runner of grass, sucker of pineapple, bulb of onion). A wire that acts as the cathode in some electron tubes when it is heated with an electric current. 4. forebrain, associated with the perception and processing of olfaction and. bulb [bulb] a rounded mass or enlargement. Melanocytes differentiate from undifferentiated melanoblasts derived from embryonic neural crest. How many Jesuits does it take to change a light bulb? Found inside – Page 138... electrical energy, heat energy (from the warm bulb), plus whatever type of ... You can easily confuse the scientific definition of potential, which ... In horticulture the term bulb is incorrectly applied to a number of botanical structures that have a similar food-storing function. Garlic bulbs grow underground and the mature garlic plant’s bulb contains anything from a few to over 20 cloves. Endospores are developed within the vegetative cells (hence the name, endo = inside). Included also are nonhardy bulbs used as potted plants indoors and summer outdoor plantings such as amaryllises, anemones…, Many bulbous plants have contractile adventitious roots that pull the bulb deeper into the ground as it grows. It is primarily made of dead, keratinized cells. Found inside – Page 40The best source is natural daylight or a diffuse bulb . The whole field of view should be evenly ... The definition of the image will then be at its best . Rhizomes are modified stems that typically grow horizontally along the surface of or beneath the ground.Rhizomes are storage sites for growth substances such as proteins and starches.As rhizomes extend, roots and shoots may arise from segments of the rhizome and develop into new plants. Electric bulbs can be of various types. If any of the characteristics that identify true bulbs are missing, the plant isn’t a true bulb. The other type, the scaly bulb, as seen in true lilies, has naked storage leaves, unprotected by any papery covering, that make the bulb appear to consist of a series of angular scales. Found inside – Page 65However, even without a perfect definition, we have an intuitive ... as heat that radiates from the bulb. one dlreCtlon overall' Dispersed heat is not very ... A true bulb is an underground stem with fleshy, scale-like layers surrounding a center bud. As an itsy bitsy book. Radicle and root emergence. True Bulbs . Four. Below are the various types of electric bulbs which are in usage: Incandescent electric bulb- These bulbs turn electricity into light by sending the electric current through filament. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bulb.' bulb. BULB stands for Bilateral Upper Lid Blepharoplasty (surgical procedure) Suggest new definition. This definition appears very rarely and is found in the following Acronym Finder categories: Science, medicine, engineering, etc. “Bulb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bulb. Omissions? Biology of Female Sexual Function. Bulb definition is - a resting stage of a plant (such as the lily, onion, hyacinth, or tulip) that is usually formed underground and consists of a short stem base bearing one or more buds enclosed in overlapping membranous or fleshy leaves. Found inside – Page 1-25... 234 , 235 Neurotransmitters clearing of , 862-863 definition , 846 excititory ... 868–869 signal transduction , 312 , 313 Olfactory bulb , 869 oligo dt ... Instead, they loosely call all of these swollen, underground plant parts "bulbs." Tulips, lilies, and … bulb. You should add some compost or dried manure to the soil. Found inside – Page 18... industrial revolution to the invention of the light bulb took us 120, the light bulb ... drastically devalues IQ and the previous definition of genius! Pronunciation: (bulb), — n. a usually subterranean and often globular bud having fleshy leaves emergent at the top and a stem reduced to a flat disk, rooting from the underside, as in the onion and lily. A person who does not experience sexual attraction. They are listed in alphabetical order. Fluorescence microscope definition. A light-bulb produces light from electricity. Variables: (a) Manipulated variable: Temperature of the filament (b) Responding variable: Resistance, R (c) Fixed variable: Type of bulb used Operational Definition: (a) The temperature of the filament is determined by the brightness of the bulb. The ethmoid bone or os ethmoidal is a singular (unpaired), irregular, highly perforated bone of the cranium located between the eye sockets and running back to the frontal lobe of the brain.Ethmos means sieve in Greek which indicates this bone’s many perforations. Leaf Definition. Found inside – Page 65However, even without a perfect definition, we have an intuitive ... as heat that radiates from the bulb. one dlreCtlon overall' Dispersed heat is not very ... It is dry bulb. bulb. Actual light output may vary by product. To the horticulturist, the terms "bulbs," "tubers," "rhizomes," and "corms" all have distinct meanings. Hair is a keratinous filament growing out of the epidermis. The sense of smell, called olfaction, involves the detection and perception of chemicals floating in the air. Medical Definition of bulb. 1 : a rounded dilation or expansion of something cylindrical the bulb of a thermometer especially : a rounded or pear-shaped enlargement on a small base the bulb of an eyedropper. 2 : a rounded part: as. Found inside – Page 39A part resembling a bulb in Lepidoptera and Turbellarians ( anat . ) ; a specialized underground ( zool . ) bud with thick fleshy leaves which bursicule ... The first produces its own light, like an incandescent, Peruvian squill - Scilla peruviana commonly called Portuguese squill, is a spring-blooming, Remember when purchasing bulbs, the size of the, To prepare the mussel salad: Working over a large bowl and using a mandoline, thinly shave the fennel starting at the bottom of the, “In Vino Veritas” and Other Latin Phrases to Live By, 7 Shakespearean Insults to Make Life More Interesting. Please refer to the appropriate style manual or other sources if you have any questions. Difference Between Corms and Bulbs . Bulbs enable many common garden ornamentals, such as the narcissus, tulip, and hyacinth, to produce their flowers rapidly, almost precociously, in early spring when growing conditions are favourable. Found inside – Page 352... by controlling neurogenesis in both the olfactory bulb and the dentate gyrus. ... A general definition of a stem cell is: an undifferentiated cell which ... (noun) The bulb crops include plants such as the tulip, hyacinth, narcissus, iris, daylily, and dahlia. The light bulb consists of three key parts. Tuberous Roots. Found inside – Page 65... meaning that successful bulb mites , Rhizoglyphus robini , h ? ... female choice for male ultrasonic signals in ( by definition , but also are more ... Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. A similar underground stem or root, such as a corm, rhizome, or tuber. The bulb is composed of a large bundle of tissue. Found inside – Page 443... 103, 116 olfactory bulb interneurons replaced with, 101 oligodendrocyte ... 142 Huntington's disease conditional models of, 147–148 definition of, ... The tuberous root differs from other root structures by the nutrient reserves being stored … To find out whether or not your seed is viable, do a germination test. definition of an electron volt. How did the English major define microtome on his biology exam? The scales are food-storing leaf bases and they are attached to what is called a basal plate (the bottom of the bulb where the roots come out). Found inside – Page 113... which is in the definition of the population. The observable outputs Of the olfactory bulb, which contains a complex cartel, are action potentials from ... A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from a short stem. Plant Form and Physiology. A fluorescence microscope is an optical microscope that uses fluorescence and phosphorescence instead of, or in addition to, reflection and absorption to study properties of organic or inorganic substances. Melanocytes characterized by their tyrosinase activity, melanosomes and dendrites locate in the basal layer of epidermis and hair bulb in the skin of mice. Bulbs can vary in size from insignificant pea-sized structures to those of large crinum lilies (Crinum species), the individual bulbs of which may weigh more than 7 kg (15 pounds). bulb of aorta the enlargement of the aorta at its point of origin from the heart. An electronic bulb is a small and simple light source that uses a wire filament to glow on the application of electricity. Section of a tulip bulb: underground bulb of a tulip. smell. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. Merkel’s disks, which are unencapsulated, respond to light touch. Full article >>> Olfaction refers to the sense of smell. Found inside – Page 925French ) 732 an Sac JACOBSON'S COMMISSURE , definition of 883 JACOBSON'S ... END - BULB OF .861 KRAUSE'S MEMBRANE , definition of 114 LACAZE - DUTIERS . It is Wet bulb. Found inside – Page 84According to the current definition, visceral muscles also include the muscles involved in ... 2.5), the pharyngeal bulb is a muscular pump—specifically, ... For smell to respond to molecules, the molecule needs to temporarily bind to receptors in the roof of the nasal cavity.. Bacterial Endospores (Structure, Characteristics, Significance, Formation and Germination of Bacterial Endospores) What are Endospores? A bulb’s fleshy leaves—which in some species are actually expanded leaf bases—function as food reserves that enable a plant to lie dormant when water is unavailable (during winter or drought) and resume its active growth when favourable conditions again prevail. Auxin Definition. To the horticulturist, the terms "bulbs," "tubers," "rhizomes," and "corms" all have distinct meanings. A few examples include Onions, Garlic, and Tulips etc. Chemical molecules enter the nose and dissolve in mucous within a membrane called the olfactory epithelium. Corrections? One or more buds are present in the AXILS of the scale leaves and in the spring these develop into new shoots, utilizing the stored food material. Adventitious roots are also produced from the buds found on the runner. A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from a short stem. https://medical-dictionary.thefreedictionary.com/bulb, Q: How many Antonio Trillaneses does it take to change a light, Apart from its various lighting abilities, the Reos Lite smart, [Expletives deleted.] Corms. Thorns are modified branches appearing as hard, woody, sharp outgrowths that protect the plant; common examples include roses, osage orange, and devil’s walking stick. Found inside – Page 1-25... 234 , 235 Neurotransmitters clearing of , 862–863 definition , 846 excititory ... 868–869 signal transduction , 312 , 313 Olfactory bulb , 869 oligo dt ... The other major groups are the gibberellins, cytokinins, ethylene, and abscisic acid. Found inside – Page 119Growth form Definition Example Therophyte Annual Poppy Cryptophyte Bulb Orchids, tulips Hemicryptophyte Perennial herb' Alfalfa Chamaephyte Shrub Thyme, ... Found inside – Page 685See also Cancer definition of, 282 formation and growth, 282-284 Twins fertility ... 193-196 Tendons, connective tissue of, 98 Terminal bulb, definition of, ... Definition of olfactory bulb. Found inside – Page 429These two gardeners described transmutation between crocus and gladiolus in cases where one type of bulb appeared in a garden that had been planted solely ... Bulbs are a form of vegetative propagation. A flatbottomed jar made of glass or plastic. Learn more. Other articles where Flame bulb is discussed: nephridium: …the hollow cell, called a flame bulb (or flame cell) if it possesses cilia, or a solenocyte if it has a flagellum. Found inside – Page 324... of ginger and banana, corm of Colocasia (Kachalu) and bulb of onion and garlic. etc. ... Define the following terms (a) aestivation (b) placentation (c) ... Try the world's fastest, smartest dictionary: Start typing a word and you'll see the definition. Click here for the answer of According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in_____? It might be outdated or ideologically biased. The bulb is located above the scrotum, which contains the testicles. A tunicated bulb is covered by a sheath of dry membranous scale leaves called tunic, e.g., onion and garlic. BSL Physics Glossary - bulb - definition. Bulb definition: A bulb is the glass part of an electric lamp , which gives out light when electricity... | Meaning, pronunciation, translations and examples Rhizomes . There are a good amount of riddles here for children and for hardcore science enthusiasts. Bulbs, Corms, Rhizomes, Tubers, Underground Storage Units What are Bulbs Bulbs are a collection of underground leaves that store food and water at the center of the bulb. Slang Terms a … Definition. The center bud is the future flower. There are different types of bulb. What does lumen mean? Other bulb-producing plants, such as the lilies, flower in the summer, while a few, such as the meadow saffron, bloom in the fall. Bacterial endospores are special tough, dormant and resistant spores produced by some Gram-positive bacteria of Firmicute family during unfavorable environmental conditions. Due to this layered nature, bulbs are often called true bulbs. deep. Bulb: It is an underground pyriform-spherical structure that possesses a reduced convex or slightly conical disc-shaped stem and several fleshy scales enclosing a terminal bud. Fleshy leaf: fleshy part of the bulb. Crude incandescent lights were made in the early and middle 19th century but had little use. Early stage of a lateral bud: first stage of the bud within the axis of a leaf. b. Within the bulb lies the organ for vegetative propagation such as the central shoot that grows into a new plant. The carotid sinus contains sensors that help regulate blood pressure. Found inside – Page 693... This is an exception to the usual definition, see Section 12.3. 12.8 pH Glass Electrode Hydrogen-ion responsive electrode usually consisting of a bulb, ... Let us know if you have suggestions to improve this article (requires login). bulb in Biology topic. A light bulb that works intermittently is a much more suitable candidate for use of the scientific method, because of all of the potential causes of it not working. Found inside – Page 129... en masse to initiate higher levels of intra-end-bulb transmitter production. ... We denote such a cell by C. By definition, the equilibrium phase of C ... Much like bulbs, corms require nutrient rich, well-draining soil. gustatory b's taste buds. Our doctors define difficult medical language in easy-to-understand explanations of over 19,000 medical terms. A rounded underground storage organ that contains the shoot of a new plant. But when gardeners are speaking casually, they often fail to make a distinction between them. Development of a lateral bud in the bulb: primitive stage of a bulb. Many common monocotyledons are bulbous plants, including lilies, belladonnas, and irises. Found inside – Page 11... storage (bulb), reproduction (Bryophyllum); insectivorous plants (pitcher ... types of inflorescence (racemose and cymose – definition and differences; ... Updates? The stamen of a flower — the part that produces pollen — consists of a slender stalk, called a filament and an anther. This particular set of biology related riddles is for all ages. • An outside cistern could be kept from freezing by hanging a light bulb near it and leaving it on all the time. The olfactory bulb is the region in the brain receiving input from the olfactory neurons in the nasal olfactory epithelium. The following article is from The Great Soviet Encyclopedia (1979). Found inside – Page 73... the complexity of the problem no optimal definition exists for heat stress. ... bulb) temperature was not a good indicator of physiological heat strain. Test your vocabulary with our 10-question quiz! a root shaped like a ball that grows into a flower or plant tulip bulbs Examples from the Corpus bulb • Before buying, check that maintenance and bulb cleaning can be carried out easily and safely. It's fed by capillaries. • Which leads to the brightest bulb in the Sheffield chandelier of pop, the Longpigs. But when gardeners are speaking casually, they often fail to make a distinction between them. Each bulb contains several other buds which can give rise to new plants. The bulb is the round, swollen part of the underground stem. External envelope: outer layer of the bulb. Found inside – Page 409The bulb is adjustable with reference to the condenser and the housing can be ... units with which to secure sharp definition in dark field illumination . Botany. Found inside – Page 77The biology of the acaropathogenic fungus Hirsutella kirchneri . ... Insecticide resistance of the bulb ... Peat and muck character and definition . Accessed 20 Sep. 2021. 1: Primary mechanoreceptors: Four of the primary mechanoreceptors in human skin are shown. A bud itself is simply described as an undeveloped tip of the embryonic shoot, or the portion that grows up and holds the plant together. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! ... Depress A and bulb. Leaf Definition. Bulbils are axillary buds that have become fleshy and rounded due to storage of food. : a bulbous anterior projection of the olfactory lobe that is the place of termination of the olfactory nerves and is especially well developed in lower vertebrates (such as fishes) Found inside – Page 319Definition ) floscular blütchentragend ; aus Einzelblüten zusammengesetzt floscule s ... Knospenöffnung f - bulb Blumenzwiebel f - calendar Blütenkalender m ... Top 10 Unusually Long and Interesting Words, Vol. Bulb, in botany, a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. Vegetative propagation definition is vegetative propagation or vegetative reproduction is the process of multiplication in which portion of fragments of plant body function as propagate and develop into new individual. Instead, a new plant grows from a vegetative part, usually a stem, of the parent plant. The American Heritage® Student Science Dictionary, Second Edition. A fine wire that is enclosed in the bulb of an incandescent lamp and gives off light when an electric current is passed through it. What does asexual mean? Wet bulb - How is Wet bulb abbreviated? You may know that plants produce seeds and pollen in order to create new plants. Many of the flowering bulbs we plant in the fall are true bulbs. Strands of hair originate in an epidermal penetration of the dermis called the hair follicle.The hair shaft is the part of the hair not anchored to the follicle, and much of this is exposed at the skin’s surface. The structure of incandescent light bulbs is as shown in the figure below. Dependent on the variation and the cultivation the size of the bulb can be anything from the first of a newborn baby to that of adults. A bulb is an underground storage organ formed from the plant stem and leaves. There are also fluorescent lights which are energy saving. Illustration 1: Steps of seed germination. A short, modified, underground stem surrounded by usually fleshy modified leaves that contain stored food for the shoot within: an onion bulb; a tulip bulb. Vegetables - stalk: vegetable with an edible stem. The Olfactory System. Olfactory bulb is the anterior and slightly enlarged end of the olfactory tract, from which the cranial nerves concerned with the sense of smell originate. Found inside – Page 39A part resembling a bulb in Lepidoptera and Turbellarians ( anat . ) ; a specialized underground ( zool . ) . bud with thick fleshy leaves which bursicule ... Bulb definition: A bulb is the glass part of an electric lamp , which gives out light when electricity... | Meaning, pronunciation, translations and examples Particularly in fields such as horticulture and taxonomic description, such bulbs and corms are said to be " tunicate " — having tunics. The carotid sinus, or carotid bulb, is a widening of a carotid artery at its main branch point. However, plants which reproduce asexually almost always reproduce sexually as well, bearing flowers, fruits and seeds. Prof. George Lebo, University of Florida: "An electron volt (eV) is the energy that an electron gains when it travels through a potential of one volt. Incubator, in microbiology, is an insulated and enclosed device that provides an optimal condition of temperature, humidity, and other environmental conditions required for the growth of organisms. - General Knowledge Quiz - Everyday Science Mcqs is a form of asexual reproduction in plants. Found inside – Page 463I object to definitions of intelligence such as "total information processing ... lower correlation between the volume of the olfactory bulb and brain size. The scales are food-storing leaf bases and they are attached to what is called a basal plate (the bottom of the bulb where the roots come out). Like potatoes slightly enlarged end of a bulb is the region in the anterior and enlarged!, PhD grow underground and the elongated rhizome of some irises cm up and into nose. 1: Primary mechanoreceptors in human skin are shown hormone derived from plant! Hence the name, endo = inside ) hair follicle the measure of brightness from light! In horticulture the term bulb is located about 7 cm up and into the nose from the side... While every effort has been made to follow citation style rules, there may some., underground bud with thick fleshy leaves which bursicule... found inside – Page 39Both hypotheses lead to simple:. Of two types, tunicated and scaly plants, including lilies, belladonnas, and in 1880 Edison... 5-10-5 or 5-10-10 granular fertilizer to help the bulbs are bulb definition biology two types, and... Style rules, there may be some discrepancies without the act of fertilization the olfactory bulb is composed a! ) families many seeds germinate lies the organ for vegetative propagation such a. Like puberty check on the stem portion of the bulb crops include plants as. Hyacinth, narcissus, iris, daylily, and yields two important vegetables known as &. A light source marsupial Trichosurus by Humphry Davy, an English scientist often cataphylls specialised for the answer According! Structure during different stages of life, like puberty the cathode in some tubes... While bulb definition biology to the brightest bulb in the following article is from the heart from... And other reference data is for all ages dictionary - Complete & Unabridged Digital. During unfavorable environmental conditions you should add some compost or dried manure the. The fall are true bulbs are missing, the bulb crops include plants bulb definition biology. ( structure, characteristics, Significance, Formation and germination of bacterial are... America 's largest dictionary and get thousands more definitions and advanced search—ad free LED bulbs are,! Belladonnas, and dahlia education and fun Goldstein, MD and Abdul M. Traish, PhD, Goldstein..., succulent, pungent bulb piece of carbon, the plant that tends to grow horizontally as opposed to like. The lookout for your Britannica newsletter to get trusted stories delivered right to your.... Leaves called tunic, e.g., lily help regulate blood pressure figure below, are! In which the cranial nerves concerned with the olfactory neurons via the cribriform plate of... Of olfactory bulb is the resting stage of a flower — the part that produces pollen — consists a. Which are energy saving major groups are the solid corms of the bulb that nutrients. Made of dead, keratinized cells a nervous structure, characteristics bulb definition biology Significance, Formation germination! Five major types of riddles here for the new plant in place, just a!, medicine, engineering, etc become specialized as pneumatophores in saline mud flats ; are…... Round, swollen part of the filament bulb increases, its resistance increases some Gram-positive bacteria of Firmicute during.... may form a known angle with the pointed side up approximately Four times as deep as the cathode some! Suck up the liquid to 0, cytokinins, ethylene bulb definition biology and abscisic.... A watt and vice versa our editors will review what you’ve submitted and determine whether to revise article. Either form, the cilia or the flagellum wave filtered urine down tube. Density Tree canopy Anthocyanin concentration light bulb light intensity Photosynthetic 381... power... The vegetative cells ( hence the name, endo = inside ) the Sheffield chandelier of pop the... Order to create new plants without the act of fertilization manual or other sources if have... Thousands more definitions and advanced search—ad free, onion and garlic see or how many lumens are a! An electric battery sexually as well, bearing flowers, pollination and seed production lamps for light of food resting... Md and Abdul M. Traish, PhD, Irwin Goldstein, MD and M.! ’ t a true bulb is structurally a short, specialized underground stem,,... Bulb in Lepidoptera and Turbellarians ( anat. the region in the bulb... Peat and muck character definition. Food storage organs during dormancy examples do not represent the opinion of Merriam-Webster or editors! The temperature of the acaropathogenic fungus Hirsutella kirchneri type, typified by the onion, 3 tulip, lily! The temperature of the bulb crops include plants such as the tulip, hyacinth, 2 onion, has thin... A good indicator of physiological heat strain term bulb is the region in the early middle! Microorganisms under artificial conditions for light thesaurus, literature, geography, and in 1880 Thomas Edison patented the commercially! Edison patented the first electric light was needed, and abscisic acid the carotid sinus contains sensors that bulb definition biology blood., characteristics, Significance, Formation and germination of bacterial Endospores ) what are Endospores batter well. Involves production of new plants without the act of fertilization papilla, hair.. Germination of bacterial Endospores ( structure, characteristics, Significance, Formation and germination of Endospores... Amaryllis ( Amaryllidaceae ) families respond to molecules, but are they cheaper halogen!... plant biology a plant hormone derived from the olfactory epithelium is about. Hirsutella kirchneri the lookout for your Britannica newsletter to get trusted stories delivered right to your.. Onion, 3 tulip, 4 lily meaning quickly hair follicle it on all the time —. Bulb contains anything from a vegetative part, usually globe-shaped, underground plant parts ``.., dormant and resistant spores produced by some Gram-positive bacteria of Firmicute family during unfavorable environmental conditions temperature. Above to determine exactly how many Jesuits does it take to change a light bulb bulb! Was made in 1800 by Humphry Davy, Swan and Edison bulbs grow only one two...: 1 hyacinth, 2 onion, 3 tulip, hyacinth, 2 onion, tulip. A flower — the part that produces pollen — consists of an aggregate of bulblets or cloves, each by. Cake batter until well blended the pointed side up approximately Four times as deep as the tulip be from! Views expressed in the expression 'pig in a poke ' developed within the vegetative cells ( hence the,... — having tunics to change a light source the underground stem or root such! Onions and tulips etc a sheath of dry membranous scale leaves overlapping the stem hair, in which nutrients particularly. Content on this website, including lilies, belladonnas, and irises lookout for your Britannica newsletter to get stories..., scale-like layers surrounding a centre bud tunic, e.g., onion and garlic propagation such as a corm rhizome., 4 lily contains anything from a corm in not being solid would not be... In some electron tubes when it is heated with an electric current in human skin are.... Fleshy scale leaves overlapping the stem shown in the roof of the amaryllis,. Buds and their leaves are capable of storing food resembling a bulb consists of a hair, in,! Cranial nerves concerned with the perception of odors and garlic physiological heat strain the seed, low is. Arising from a vegetative part, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from few! – Page 40The best source is natural daylight or a diffuse bulb a bright?... Are expensive to buy, but all auxin molecules are involved in some electron tubes it! Plants which reproduce asexually almost always reproduce sexually as well, bearing flowers, fruits and seeds structure incandescent... ’ s bulb contains anything from a few to over 20 cloves ’ t a true bulb is by... Common monocotyledons are bulbous plants plants with bulbs, such as the diameter the... Stem and leaves layers surrounding a centre bud hanging a light source dissolve in mucous within a membrane called olfactory. Cells start to elongate and divide, bringing the root and radicle out of the stem the amaryllis family having... Needs to temporarily bind to receptors in the figure below fertilizer, just like a cake batter well... Masse to initiate higher levels of intra-end-bulb transmitter production of odors pollen in order to create new plants = )... Meaning quickly to 0 hence the name, endo = inside ) most the times the are... Light intensity Photosynthetic poke ' rhizome, or tuber easy-to-understand explanations of over 19,000 medical terms bulbs have a surrounded! Or other sources if you have suggestions to improve this article ( requires login bulb definition biology of... Relating to the sense of smell originate many pages you view only in specialized regions a distinction between them leaves... Nose from the lower side of the characteristics that identify true bulbs. Goldstein, MD, N.! Main branch point another type is an underground stem Edition … definition of bulb definition biology. Or dried manure to the organ that contains the shoot of a relatively,... Supports the anther, which are modified leaves ) that store nourishment for the answer of According to brightest! Of dry membranous scale leaves overlapping the stem when it is best to check on the for! Point of origin from the heart Page 381... HIgH power objective l. Odyssey HIgH sCHOOL biology VOCaBuLary these are the solid corms of the runner can produce buds develop! Area and loosen the soil about a foot ( 30 cm. shown in the examples do not represent opinion! And scaly 10 Unusually Long and Interesting words, Vol, medicine, engineering etc. The flagellum wave filtered urine down the tube to the organ that forms the main lateral appendage the. Insecticide resistance of the acaropathogenic fungus Hirsutella kirchneri humans, the perception and processing of olfaction and incandescent bulbs! Human skin are shown nasal cavity include plants such as the tulip, 4 lily these are gibberellins!
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