Definition of bulb in English: bulb. WebMD's Hair Anatomy Page provides a detailed image and definition of the hair and its parts. Bulb, in botany, a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. The vestibular bulbs are the homologues of the male corpus spongiosum. The filament sits in the middle of the bulb, held up by a glass mount. Process smells and relate them to your emotions and memories. These claims are found in numerous articles that have been written by Addiego F, Whipple B, Jannini E, Buisson O, O'Connell H, Brody S, Ostrzenski A, and others, have no scientific basis. The carotid sinus contains sensors that help regulate blood pressure. The olfactory bulbs are a pair of swellings above the olfactory epithelium and underneath the frontal lobes of the brain that transmit odor … Compare → corm. hair bulb. Omissions? 2 a plant, such as a hyacinth or daffodil, that grows from a bulb. two elongated masses of erectile tissue typically described as being situated on either side of the vaginal opening. The filament in a light bulb is made of a long incredibly thin length of tungsten metal. T12s for instance have 15 in. 2 a plant, such as a hyacinth or daffodil, that grows from a bulb. While every effort has been made to follow citation style rules, there may be some discrepancies. (Anatomy) the moist canal in most female mammals, including humans, that extends from the cervix of the uterus to an external opening between the labia minora 2. Pronunciation /bəlb/ See synonyms for bulb. 3 See → light bulb. forebrain, associated with the perception and processing of olfaction and. In botany, a bulb is a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy. 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. Distinguish between different smells. … At the base, they have two metal contacts, which connect to the ends of an electrical circuit. Please refer to the appropriate style manual or other sources if you have any questions. The metal contacts are attached to two stiff wires, which are attached to a thin metal filament. There are two main types of bulbs. 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. The stairwell was lit by a single bulb. They are formed from the branching ends of axons of receptor cells and from the outer (dendritic) branches of interneurons, known in vertebrates as mitral cells, that pass information to other parts of the brain. 3 See → light bulb. Other bulb-producing plants, such as the lilies, flower in the summer, while a few, such as the meadow saffron, bloom in the fall. Inhibit certain stimuli to … Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Hair bulb definition: the end of a hair follicle containing active hair-growing cells; situated under the skin | Meaning, pronunciation, translations and examples Bulb, in botany, a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. any round, enlarged part, especially at the end of a cylindrical object: the bulb of a thermometer. Light bulbs have a very simple structure. 4 a rounded part of an instrument such as a syringe or thermometer. Synonyms: light bulb More Synonyms of … noun Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end. 3 See → light bulb. One type, typified by the onion, has a thin papery covering protecting its fleshy leaves. Tap again to see term . Bulb-producing species are especially abundant in the lily (Liliaceae) and amaryllis (Amaryllidaceae) families. The hair bulb forms the base of the hair follicle. The color of light produced depends on the composition of the phosphor. 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. The correct anatomical term to describe the erectile tissues responsible for female orgasm is the female penis. A bulb is the roundish, tear-shaped part of some plants. Understand the anatomy of recessed lighting by understanding the components that make up a recessed housing and recessed trim. A bulb is the glass part of an electric light or lamp, which gives out light when electricity passes through it. bulb. One of the two sacculated collections of veins, lying on either side of the vagina beneath the bulbocavernosus muscle, connected anteriorly by the pars intermedia, and through this strip of cavernous tissue communicating with the erectile tissue of the clitoris. This article was most recently revised and updated by, British Broadcasting Corporation - Planting spring bulbs, Colorado State University Extension - Fall Planted Bulbs and Corms. The bulb crops include plants such as the tulip, hyacinth, narcissus, iris, daylily, and dahlia. ... 3.2 A spheroidal dilated part at the end of an anatomical structure. Other bulbs contain poisonous compounds—such as the red squill (Drimia), the bulbs of which are the source of a highly effective rat poison. A few bulb-producing species are of economic importance to humans because of the taste and nutritive value of their fleshy leaves; included among such species are the onion and its relatives the shallot, garlic, and leek. : the bulbous expansion at the base of a hair from which the hair shaft develops. Compare → corm. n. 1 a rounded organ of vegetative reproduction in plants such as the tulip and onion: a flattened stem bearing a central shoot surrounded by fleshy nutritive inner leaves and thin brown outer leaves. Don’t try planting that … Start studying Hair Anatomy. There were bundles of labels, cupboards, and drawers with compartments, and wire guards for the cupboards, to allow free access to the air whilst keeping out slugs, mice, dormice, and rats, all of them very curious fanciers of tulips at two thousand francs a, Soon people from Dort to Mons began to talk of Mynheer van Baerle's tulips; and his beds, pits, drying-rooms, and drawers of, What was the agony of the unfortunate Boxtel on seeing the windows of the new story set out with, And thus Van Baerle was to have the most admirably fitted aspect, and, besides, a large, airy, and well ventilated chamber where to preserve his, Here passing a florist's shop he saw some, Here I found some young onions, a couple of gladiolus, [USPRwire, Tue Aug 27 2019] Levitating light, [ClickPress, Wed Aug 28 2019] Levitating light, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Bulb Market 2018 2028 by Segmentation: Based on Product, Application and Region, Reos Lite: A Bluetooth LED bulb to spice up home lighting. In botany, a bulb is structurally a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy. If you plant a bulb, a flower will pop up. (In gardening, plants with other kinds of storage organ are also called "ornamental bulbous plants" or just "bulbs".) 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. Bulb is also short for light bulb. Updates? Get a Britannica Premium subscription and gain access to exclusive content. It is present in the anterior cranial fossa and communicates with the olfactory neurons via the cribriform plate. 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. The tuberous root differs from other root structures by the nutrient reserves … 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. bulb. Within the olfactory bulb are discrete spheres of nerve tissue called glomeruli. 5 (Anatomy) a rounded expansion of a cylindrical organ or part, such as the medulla oblongata. Some lateral roots of mangroves become specialized as pneumatophores in saline mud flats; pneumatophores are…. (Anatomy) anatomy biology any sheath or sheathlike structure, such as a leaf base that encloses a stem 3. It allows you to: Perceive olfactory information. Create. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. In conjunction with five other components, the bulb forms the internal structure of the penis and the visible, external shape of the penis. (In gardening, plants with other kinds of storage organ are also called "ornamental bulbous plants" or just "bulbs".) considered the main place where olfactory information is processed. smell. Search. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. In the hair bulb… Corrections? Included also are nonhardy bulbs used as... Plants sprouting out of the ground from bulbs. Vaginal orgasm and the G-spot do not exist. Learn vocabulary, terms, and more with flashcards, games, and other study tools. bulb - lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning" a plant growing from such a bud. Our editors will review what you’ve submitted and determine whether to revise the article. Tuberous Roots. hairball, hairbrained, hairbreadth, hairbrush, hairbrush cactus, hair bulb, hair cast, hair cell, haircloth, haircoloring, haircut The bulb crops include plants such as the tulip, hyacinth, narcissus, iris, daylily, and dahlia. Climbing plants often grip their supports with specialized adventitious roots. Let us know if you have suggestions to improve this article (requires login). Olfactory bulb is a nervous structure, a part of. 6 (Also called) bulbous bow a bulbous protuberance at the forefoot of a ship to reduce turbulence. bulb a short, specialized underground stem in which nutrients (particularly sugars) are stored in fleshy scale leaves overlapping the stem. The bulbus glandis (also called a bulb or knot) is an erectile tissue structure on the penis of canid mammals. 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). Translate bulb into Spanish. The carotid sinus, or carotid bulb, is a widening of a carotid artery at its main branch point. A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from a short stem. A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from a short stem. The bulb is composed of a large bundle of tissue. Medical Definition of hair bulb. Anatomy of a light bulb. n. 1 a rounded organ of vegetative reproduction in plants such as the tulip and onion: a flattened stem bearing a central shoot surrounded by fleshy nutritive inner leaves and thin brown outer leaves. Among these are the solid corms of the crocus and gladiolus and the elongated rhizome of some irises. During mating, immediately before ejaculation the tissues swell up to lock the male's penis inside the female.The locking is completed by circular muscles just inside the female's vagina; this is called "the knot" tightening thus preventing the male from withdrawing. bulb - lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning" In horticulture the term bulb is incorrectly applied to a number of botanical structures that have a similar food-storing function. The olfactory bulb is the primary processing center of olfactory information.
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