a device used in sound-reproduction systems for converting sound into electrical energy, usually by means of a ribbon or diaphragm set into motion by the sound waves. The vibrations are converted into the equivalent audio-frequency electric currents
Compare loudspeaker
WordReference Random House Learner's Dictionary of American English © 2025
mi•cro•phone /ˈmaɪkrəˌfoʊn/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Electronicsan instrument that changes sound waves into electric currents, used in recording or transmitting sound.
mi•cro•phone
(mī′krə fōn′),USA pronunciation n.
- Electronicsan instrument capable of transforming sound waves into changes in electric currents or voltage, used in recording or transmitting sound.
- micro-, in sense "enlarging'' (extracted from microscope) + -phone 1875–80
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