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light bulb

noun
1.
an electric light.
Origin of light bulb
1880-1885
First recorded in 1880-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for light bulb
Contemporary Examples
Historical Examples
  • I might as well have worried about the effect of a light bulb on the sun.

    Question of Comfort Les Collins
  • He rested for a while, studying the light bulb which hung in the center of the room.

    The Martian Allen Glasser
  • The janitor may have stood on it to fix a light bulb or something.

    Signal in the Dark Mildred A. Wirt
  • If New Mexico were to call, a light bulb would flash the signal in Tom's quarters, and he would telephone the house.

  • When he said "A. Hidell" it hit me like, it was like a light bulb over my head, I recalled the name.

    Warren Commission (11 of 26): Hearings Vol. XI (of 15) The President's Commission on the Assassination of President Kennedy
British Dictionary definitions for light bulb

light bulb

noun
1.
a glass bulb containing a gas, such as argon or nitrogen, at low pressure and enclosing a thin metal filament that emits light when an electric current is passed through it Sometimes shortened to bulb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for light bulb
n.

also lightbulb, 1884, from light (n.) + bulb.

Online Etymology Dictionary, © 2010 Douglas Harper
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Difficulty index for light bulb

Few English speakers likely know this word

Word Value for light

9
10
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