Hypertext Webster Gateway: "microphone"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Microphone \Mi"cro*phone\, n. [Micro- + Gr. ? sound, voice: cf.
F. microphone.] (Physics)
An instrument for intensifying and making audible very feeble
sounds. It produces its effects by the changes of intensity
in an electric current, occasioned by the variations in the
contact resistance of conducting bodies, especially of
imperfect conductors, under the action of acoustic
vibrations.
From WordNet (r) 1.7 (wn)
microphone
n : device for converting sound waves into electrical energy
[syn: {mike}]
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