otacoustic


From The Collaborative International Dictionary of English v.0.48:

otacoustic \ot`a*cous"tic\, otacousticon \ot`a*cous"ti*con\, n.
   An instrument to facilitate hearing, as an ear trumpet.
   [1913 Webster]
.

From The Collaborative International Dictionary of English v.0.48:

otacoustic \ot`a*cous"tic\, a. [Oto- + acoustic: cf. F.
   otacoustique.]
   Assisting the sense of hearing; as, an otacoustic instrument.
   [1913 Webster] otacoustic
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