poly acoustic
Stedman's Medical Dictionary: A Practical Medical Dictionary · 1920 · p. 27
(pol-I-a-koos'tik) [G. polys, much, + akoustikos, relating to hearing.] Magnifying, sound, megalophonic.
Bu kavram başka kaynaklarda da geçiyor
The American Illustrated Medical Dictionary (1913)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
Nuttall's Standard Dictionary of the English Language (1890)
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
Zell's Condensed Dictionary (1879)
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