acoustics Meaning, Definition & Usage

  1. noun the study of the physical properties of sound
  2. noun a remedy for hearing loss or deafness
    acoustic.

WordNet

A*cous"tics noun
Etymology
Names of sciences in -ics, as, acoustics, mathematics, etc., are usually treated as singular. See -ics.
Definitions
  1. (Physics.) The science of sounds, teaching their nature, phenomena, and laws.
    Acoustics, then, or the science of sound, is a very considerable branch of physics. Sir J. Herschel.
    ✍ The science is, by some writers, divided, into diacoustics, which explains the properties of sounds coming directly from the ear; and catacoustica, which treats of reflected sounds or echoes.

Webster 1913