Definition of “light bulb” - English Dictionary

british dictionary

“light bulb” in British English

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light bulbnoun [ C ]

uk /ˈlaɪt ˌbʌlb/ us /ˈlaɪt ˌbʌlb/ also bulb

a rounded glass container with a thin thread of metal inside that produces light when an electric current goes through it

(Definition of “light bulb” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“light bulb” in American English

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light bulbnoun [ C ]

also lightbulb /ˈlɑɪtˌbʌlb/

a rounded glass container that produces light when an electric current is passed through it

(Definition of “light bulb” from the Cambridge Academic Content Dictionary © Cambridge University Press)