| light bulb n. An electric light in which a filament is heated to incandescence by an electric current. |
light bulb
n
(Engineering / Electrical Engineering) 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
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  light bulb - electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricityelectric lamp - a lamp powered by electricity filament - a thin wire (usually tungsten) that is heated white hot by the passage of an electric current |
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