microphone

mi·cro·phone

noun \ˈmī-krə-ˌfōn\

Definition of MICROPHONE

: an instrument whereby sound waves are caused to generate or modulate an electric current usually for the purpose of transmitting or recording sound (as speech or music)

— mi·cro·phon·ic \ˌmī-krə-ˈfä-nik\ adjective

Origin of MICROPHONE

International Scientific Vocabulary

First Known Use: 1878

Rhymes with MICROPHONE

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mi·cro·phone

noun \ˈmī-krə-ˌfōn\   (Medical Dictionary)

Medical Definition of MICROPHONE

: an instrument whereby sound waves are caused to generate or modulate an electric current usually for the purpose of transmitting or recording sound (as speech or music)

microphone

noun    (Concise Encyclopedia)

In a moving-coil microphone, sound waves cause the diaphragm to vibrate, and this oscillating …—© Merriam-Webster Inc.

Device for converting sound waves into electric power that has wave characteristics essentially similar to those of the sound. By proper design, a microphone may be given directional characteristics so that it will pick up sound primarily from a single direction, from two directions, or more or less uniformly from all directions. In addition to their use in telephone transmitters, microphones are most widely applied in hearing aids, sound-recording systems (principally magnetic and digital tape recorders), and public-address systems.