Acoustic /(#; 277)/

A·cous·tic

Acoustic

a.
  1. Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory.

Phrases & Compounds
Acoustic duct
the auditory duct, or external passage of the ear.
Acoustic telegraph
a telegraph making audible signals; a telephone.
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.

Acoustic

n.
  1. A medicine or agent to assist hearing.