'lightbulb' definitions:
Definition of 'lightbulb'
From: WordNet
noun
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]
Definition of 'lightbulb'
From: GCIDE
- 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]