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light bulb

noun \ ˈlīt-ˌbəlb \
variants: or lightbulb

Definition of light bulb

:an electric lamp: such as
a :one in which a filament gives off light when heated to incandescence by an electric current — called also incandescent, incandescent lamp
b :fluorescent lamp

See light bulb defined for English-language learners

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Illustration of light bulb

First Known Use of light bulb

1884

Phrases Related to LIGHT BULB

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LIGHT BULB Defined for Kids

light bulb

noun

Definition of light bulb for Students

:a lamp in which a glow is produced by the heating of a wire by an electric current

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