Meaning & Definition of Bulb in English
English⟶
Bulb
/bəlb/
noun
1. A modified bud consisting of a thickened globular underground stem serving as a reproductive structure
synonym:
- bulb
2. Electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
synonym:
- light bulb,
- lightbulb,
- bulb,
- incandescent lamp,
- electric light,
- electric-light bulb
3. A rounded part of a cylindrical instrument (usually at one end)
- "The bulb of a syringe"
synonym:
- bulb
4. Anything with a round shape resembling a teardrop
synonym:
- bulb
5. 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"
synonym:
- medulla oblongata,
- medulla,
- bulb
6. A rounded dilation or expansion in a canal or vessel or organ
synonym:
- bulb
Examples of using
Tom unscrewed the light bulb.
The bulb has burned out.
Thomas Edison invented the light bulb.