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lightbulb Definition

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lightbulb
noun(light bulb)
an electric lamp: such as
lightbulb
noun(light bulb)
one in which a filament gives off light when heated to incandescence by an electric current —called also incandescent, incandescent lamp
lightbulb
noun(light bulb)
fluorescent lamp
lightbulb
idiom(light bulb)
—used to say that a person suddenly understands something or has a great idea
lightbulb
noun(light bulb)
a light bulb whose light is produced by the glow of a wire heated by an electric current

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