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bulb

DEFINITIONS OF: bulb

1

n anything with a round shape resembling a teardrop

Type of:
round shape
a shape that is curved and without sharp angles

n a rounded part of a cylindrical instrument (usually at one end)

“the bulb of a syringe”
Type of:
part, portion
something less than the whole of a human artifact

n electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity

Synonyms:
electric light, electric-light bulb, incandescent lamp, light bulb, lightbulb
Type of:
electric lamp
a lamp powered by electricity

n a modified bud consisting of a thickened globular underground stem serving as a reproductive structure

Types:
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onion
the bulb of an onion plant
shallot
aggregate bulb of the multiplier onion
squill
bulb of the sea squill, which is sliced, dried, and used as an expectorant
bulbil, bulblet
small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers
Type of:
stalk, stem
a slender or elongated structure that supports a plant or fungus or a plant part or plant organ

n a rounded dilation or expansion in a canal or vessel or organ

Type of:
anatomical structure, bodily structure, body structure, complex body part, structure
a particular complex anatomical part of a living thing

n lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)

Synonyms:
medulla, medulla oblongata
Type of:
neural structure
a structure that is part of the nervous system
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