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

Illustration of light bulb

First Known Use of light bulb

1884



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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