1.Definition: a modified bud consisting of a thickened globular underground stem serving as a reproductive structure

Category: Plants

2.Definition: a rounded dilation or expansion in a canal or vessel or organ

Category: General

3.Definition: a rounded part of a cylindrical instrument (usually at one end)

"The bulb of a syringe"

Category: Objects

4.Definition: anything with a round shape resembling a teardrop

Category: General

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

Related Noun(s):lightbulb

Category: Objects

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

Related Noun(s):medulla

Category: General