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Definition of Bulb


  1. 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.
  2. A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta.
  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.
  4. To take the shape of a bulb; to swell.
More "Bulb" Quotations

Bulb Translations

bulb in Dutch is ampul, lampje, lamp, gloeilamp, peer
bulb in French is bulbe, ampoule
bulb in Italian is lampadina
bulb in Spanish is ampolla