Definition Definition

bulb - Meaning and Examples

Meaning of 'bulb' (Webster Dictionary)

1 . Bulb [ n.]
- 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.
2 . Bulb [ v. i.]
- To take the shape of a bulb; to swell.

Meaning of 'bulb' (Princeton's WordNet)

1 . bulb [ n]
Meaning (1):
- a rounded part of a cylindrical instrument (usually at one end)
Example in sentence:
  • the bulb of a syringe
Meaning (2):
- lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
Example in sentence:
  • the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning