lightbulb

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WORDNET DICTIONARY

Noun lightbulb has 1 sense

lightbulb(n = noun.artifact) bulb, electric light, electric-light bulb, incandescent lamp, light bulb - electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity; Array

is a kind of electric lamp

has parts: filament

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CIDE DICTIONARY

lightbulb, 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. [WordNet 1.5]

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