Otacoustic

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

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

From The Collaborative International Dictionary of English v.0.48 [gcide]:



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