Meaning of “dimmer” in the English Dictionary

british dictionary

"dimmer" in British English

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dimmernoun [ C ]

uk /ˈdɪm.ər/ us /ˈdɪm.ɚ/ also dimmer switch

a device for changing the brightness of an electric light, often combined with a switch to turn the light on and off

(Definition of “dimmer” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)