bulb
Speech parts
1. bulb - Noun
2. bulb - Verb
Meaning
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.
A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta.
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.
To take the shape of a bulb; to swell.
Source: Webster's dictionarySynonyms
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Examples
the bulb of a syringe
the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning
A 50-hour-life projection bulb, for instance, is designed to operate only convert below that melting point.
A cradle of reflectors is shaped and angled so that light emitted from the filament of an incandescent bulb will be thrown down the road in a way that maximizes driver visibility without blinding oncoming traffic.
According to diaries kept by the colonists, bulb onions were one of the first things planted by the Pilgrim fathers when they cleared the land for cropping.
A 25 W compact fluorescent light bulb puts out around 1700 lumens ; if that light is radiated equally in all directions, it will have an intensity of around 135 cd (135 lumens/steradian).