Here you will find one or more explanations in English for the word Otacoustic.
Also in the bottom left of the page several parts of wikipedia pages related to the word Otacoustic and, of course, Otacoustic synonyms and on the right images related to the word Otacoustic.
Otacoustic
Otacoustic Ot`a*cous"tic, a. [Oto- + acoustic: cf. F.
otacoustique.]
Assisting the sense of hearing; as, an otacoustic instrument.
Otacoustic
Otacoustic Ot`a*cous"tic, Otacousticon Ot`a*cous"ti*con, n.
An instrument to facilitate hearing, as an ear trumpet.
Meaning of Otacoustic from wikipedia