light bulb

light bulb
an electric light.
[1880-85]

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      electric incandescent lamp based on a glowing metallic filament enclosed within a glass shell filled with an inert gas such as nitrogen. See incandescent lamp; lamp.

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Universalium. 2010.

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Look at other dictionaries:

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  • light bulb — n ↑filament, ↑thread the glass object inside a lamp that produces light and has to be replaced regularly = ↑bulb …   Dictionary of contemporary English

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  • light bulb — lightbulb lightbulb, light bulb light bulb . 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… …   The Collaborative International Dictionary of English

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