microphone

[ mahy-kruh-fohn ]
/ ˈmaɪ krəˌfoʊn /

noun

an instrument capable of transforming sound waves into changes in electric currents or voltage, used in recording or transmitting sound.

Origin of microphone

1875–80; micro-, in sense “enlarging” (extracted from microscope) + -phone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for microphone

British Dictionary definitions for microphone

microphone

/ (ˈmaɪkrəˌfəʊn) /

noun

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 currentsInformal name: mike See also carbon microphone Compare loudspeaker
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for microphone

microphone


n.

1680s, "ear trumpet for the hard-of-hearing," coined from Greek mikros "small" (see mica) + phone "sound" (see fame (n.)). Modern meaning dates from 1929, from use in radio broadcasting and movie recording. Earlier, "amplifying telephone transmitter" (1878). Of the two spellings of the short form of the word, mike (1927) is older than mic (1961).

Online Etymology Dictionary, © 2010 Douglas Harper