light bulb

noun
electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity (Freq. 2)
Hypernyms: ↑electric lamp
Part Meronyms: ↑filament

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noun

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an electric light.
[1880-85]

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light bulb noun
A glass bulb containing a low-pressure gas and a metal filament which glows when an electric current is passed through it, one of the most common methods of electric lighting
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Main Entry:light

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light bulb UK US noun [countable] [singular light bulb plural light bulbs]
a glass object that you put in an electric light to produce light. A light bulb is often simply called a bulb .
Thesaurus: parts of lamps and lightsmeronym types of electric lighthyponym

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light bulb,
= incandescent lamp. (Cf.incandescent lamp)

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(also lightbulb) n. a glass bulb inserted into a lamp or a socket in a ceiling, that provides light by passing an electric current through a pocket of inert gas

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noun, pl ⋯ bulbs [count]
: a glass bulb or tube that produces light when it is supplied with electricity

change a light bulb that has burned out

called also bulb
a light bulb goes off/on
chiefly US informal
◇ When a light bulb goes off/on (in your head), you suddenly understand something or have a great idea.

After thinking about the problem for several days, a light bulb went off in her head, and she knew how to solve it.

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ˈlight bulb [light bulb light bulbs] noun
= bulb

Useful english dictionary. 2012.

Look at other dictionaries:

  • light bulb — light ,bulb noun count a glass object that you put in an electric light to produce light. A light bulb is often simply called a bulb …   Usage of the words and phrases in modern English

  • light bulb — light bulbs N COUNT A light bulb or bulb is the round glass part of an electric light or lamp which light shines from. Syn: bulb …   English dictionary

  • light bulb — also lightbulb, 1884, from LIGHT (Cf. light) (n.) + BULB (Cf. bulb) …   Etymology dictionary

  • 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

  • light bulb — light′ bulb n. elm an electric light bulb; incandescent lamp • Etymology: 1880–85 …   From formal English to slang

  • light bulb — ► NOUN ▪ a glass bulb containing inert gas, fitted into a lamp or ceiling socket, which provides light when an electric current is passed through it …   English terms dictionary

  • 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

  • light bulb — UK / US noun [countable] Word forms light bulb : singular light bulb plural light bulbs a glass object that you put in an electric light to produce light. A light bulb is often simply called a bulb …   English dictionary

  • light bulb — n. a pregnant woman. (Jocular. Refers to the shape of a pregnant woman.) □ Who’s the light bulb on the sofa? □ I can’t possibly fit that light bulb ut there. She’ll have to wait a few months before buying expensive clothing …   Dictionary of American slang and colloquial expressions

  • light bulb — Synonyms and related words: candle, electric light bulb, fire, flame, glim, illuminant, illuminator, incandescent body, lamp, lantern, light, light source, luminant, luminary, match, moon, source of light, stars, sun, taper, torch …   Moby Thesaurus


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