microphone /ˈmaɪ.krə.fəʊn/ aep /-foʊn/ noun [C] (INFORMAL mike, mic)
► B2 a piece of equipment that you speak into to make your voice louder, or to record your voice or other sounds: » The interviewer asked her to speak into/use the microphone.» My laptop has a built-in microphone.See picture: microphone
Thesaurus+: ↑Amplifiers, microphones and speakers
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Extra Examples:» Can you show me where the microphone plugs into the tape recorder?» The microphone converts acoustic waves to electrical signals for transmission.» They thrust a microphone in front of me and fired questions at me.» The photographer tripped over a lead, wrenching a microphone from its stand.