The DICT Development Group
1 definition found
for Acoustic duct
From The Collaborative International Dictionary of English v.0.48 :
Acoustic \A*cous"tic\ (#; 277), a. [F. acoustique, Gr. ?
relating to hearing, fr. ? to hear.]
Pertaining to the sense of hearing, the organs of hearing, or
the science of sounds; auditory.
Acoustic duct, the auditory duct, or external passage of
Acoustic telegraph, a telegraph making audible signals; a
Acoustic vessels, brazen tubes or vessels, shaped like a
bell, used in ancient theaters to propel the voices of the
actors, so as to render them audible to a great distance.
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