'Bulb' definitions:
Definition of 'bulb'
(from WordNet)
noun
A modified bud consisting of a thickened globular underground stem serving as a reproductive structure
noun
Electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity [syn: light bulb, lightbulb, bulb, incandescent lamp, electric light, electric-light bulb]
noun
A rounded part of a cylindrical instrument (usually at one end); "the bulb of a syringe"
noun
Anything with a round shape resembling a teardrop
noun
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" [syn: medulla oblongata, medulla, bulb]
noun
A rounded dilation or expansion in a canal or vessel or organ
Definition of 'Bulb'
From: GCIDE
- Bulb \Bulb\ (b[u^]lb), n. [L. bulbus, Gr. bolbo`s: cf. F. bulbe.]
- 1. (Bot.) 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. [1913 Webster]
- 2. (Anat.) A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta. [1913 Webster]
- Bulb of the eye, the eyeball.
- Bulb of a hair, the "root," or part whence the hair originates.
- Bulb of the spinal cord, the medulla oblongata, often called simply bulb.
- Bulb of a tooth, the vascular and nervous papilla contained in the cavity of the tooth. [1913 Webster]
- 3. An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc. --Tomlinson. [1913 Webster]
- 3. a light bulb. [1913 Webster]
Definition of 'Bulb'
From: GCIDE
- Bulb \Bulb\, v. i. To take the shape of a bulb; to swell. [1913 Webster]
Synonyms of 'bulb'
From: Moby Thesaurus
- ball,
- balloon,
- bilge,
- bladder,
- blain,
- bleb,
- blister,
- blob,
- boll,
- bolus,
- boss,
- bow,
- bubble,
- bulbil,
- bulblet,
- bulge,
- bulla,
- bump,
- bunch,
- burl,
- button,
- cahot,
- chine,
- clump,
- condyle,
- convex,
- corm,
- dowel,
- ear,
- ellipsoid,
- flange,
- flap,
- gall,
- geoid,
- globe,
- globelet,
- globoid,
- globule,
- glomerulus,
- gnarl,
- gob,
- gobbet,
- handle,
- hill,
- hump,
- hunch,
- jog,
- joggle,
- knob,
- knot,
- knur,
- knurl,
- lip,
- loop,
- lump,
- mole,
- mountain,
- nevus,
- nub,
- nubbin,
- nubble,
- oblate spheroid,
- orb,
- orbit,
- orblet,
- papilloma,
- peg,
- pellet,
- prolate spheroid,
- radicle,
- radix,
- rhizome,
- rib,
- ridge,
- ring,
- rondure,
- root,
- rootstock,
- shoulder,
- sphere,
- spheroid,
- spherule,
- spine,
- stud,
- style,
- tab,
- tap,
- taproot,
- tuber,
- tubercle,
- tubercule,
- verruca,
- vesicle,
- wale,
- wart,
- welt
Words containing 'Bulb'
- Bulbed,
- Bulb of a hair,
- Bulb of a tooth,
- Bulb of the eye,
- Dewar bulb,
- End bulb,
- Hot bulb,
- flash bulb,
- light bulb,
- olfactory bulb,
- soap bulb,
- Bulb of the spinal cord,
- Incandescent light bulb,
- Pseudo-bulb,
- artery of the penis bulb,
- artery of the vestibule bulb,
- bulb-shaped,
- conjunctival layer of bulb,
- Wet-bulb thermometer,
- dry-bulb thermometer,
- electric-light bulb