MICROPHONE
An Illustrated Encyclopedic Medical Dictionary · 1894 · p. 35
n. Mi2k'ro-fon. From /tuicpoff, small, and 00)10), a sound. An electrical instrument that renders very slight sounds audible, [a, 34.] [s. 766]
Bu kavram başka kaynaklarda da geçiyor
A Dictionary of Military Terms (1918)
French-English Dictionary of Military Terms (1918)
Hawkins' Electrical Dictionary (1915)
Chamber's Twientieth Century Dictionary (1908)
Nuttall Encyclopedia (1907)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Student's Medical Dictionary (1896)
The Standart Electrical Dictionary (1892)
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