- light bulb
- nounelectric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity (Freq. 2)• Syn: ↑lightbulb, ↑bulb, ↑incandescent lamp, ↑electric light, ↑electric-light bulb• Hypernyms: ↑electric lamp• Part Meronyms: ↑filament
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noun* * *
an electric light.[1880-85]* * *
light bulb nounA 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• • •Main Entry: ↑light* * *
a glass object that you put in an electric light to produce light. A light bulb is often simply called a bulb .* * *
light bulb,= incandescent lamp. (Cf. ↑incandescent lamp)* * *
(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* * *
noun, pl ⋯ bulbs [count]: a glass bulb or tube that produces light when it is supplied with electricitychange a light bulb that has burned out
— called also bulba light bulb goes off/onchiefly 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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= ↑bulb
Useful english dictionary. 2012.