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Alternative forms[edit]


From acoustic +‎ -s.


  • IPA(key): /əˈkuː.stɪks/
  • (file)

Noun 1[edit]

acoustics (uncountable) See -ics regarding the treatment of such nouns as singular.

  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 John Herschel.

Usage notes[edit]

  • The science was previously divided by some writers into diacoustics, which explains the properties of sounds coming directly from (sic! Webster) the ear; and catacoustics, which treats of reflected sounds or echoes. This division is now obsolete.

Related terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.

Noun 2[edit]


  1. plural of acoustic