Search Result for "lightbulb": 
Wordnet 3.0

NOUN (1)

1. electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity;
[syn: light bulb, lightbulb, bulb, incandescent lamp, electric light, electric-light bulb]


The Collaborative International Dictionary of English v.0.48:

lightbulb \lightbulb\, light bulb \light bulb\n. A glass bulb with metallic contacts on the outside connected to a wire filament (usually tungsten) inside that emits light when heated by passage of electricity through the filament; -- used as the replaceable light-emitting component of an electric lamp, flashlight, lighting fixture, etc. Syn: light bulb, bulb, incandescent lamp, electric light, electric-light bulb. [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):

lightbulb n 1: electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity [syn: light bulb, lightbulb, bulb, incandescent lamp, electric light, electric-light bulb]