Microphone

An Illustrated Dictionary of Medicine, Biology and Allied Sciences · 1907 · p. 28

(mi' -krofon). An instrument that amplifies delicate or feeble sounds.

Bu kavram başka kaynaklarda da geçiyor

A Dictionary of Military Terms (1918)
French-English Dictionary of Military Terms (1918)
Hawkins' Electrical Dictionary (1915)
Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: General Information (1909)
Chamber's Twientieth Century Dictionary (1908)
Nuttall Encyclopedia (1907)
The Student's Medical Dictionary (1896)
An Illustrated Encyclopedic Medical Dictionary (1894)
The Standart Electrical Dictionary (1892)
Dictionary of Science, Literature and Art (1854)

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