acoustic Meaning, Definition & Usage

  1. noun a remedy for hearing loss or deafness
  2. adjective of or relating to the science of acoustics
    acoustical.
    • acoustic properties of a hall

WordNet

A*cous"tic adjective
Etymology
F. acoustique, Gr. relating to hearing, fr. to hear.
Definitions
  1. Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory.
A*cous"tic noun
Definitions
  1. A medicine or agent to assist hearing.

Webster 1913