acoustic

[ uh-koo-stik ]
/ əˈku stɪk /

adjective Also a·cous·ti·cal.

pertaining to the sense or organs of hearing, to sound, or to the science of sound.
(of a building material) designed for controlling sound.
Music.
  1. of, relating to, or being a musical instrument whose sound is not electrically enhanced or modified.
  2. arranged for or made up of such instruments: an acoustic solo; an acoustic group.

noun

Obsolete. a remedy for deafness or imperfect hearing.

Origin of acoustic

From the Greek word akoustikós, dating back to 1595–1605. See acouasm, -tic

Related forms

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for acoustic

British Dictionary definitions for acoustic

acoustic

acoustical

/ (əˈkuːstɪk) /

adjective

of or related to sound, the sense of hearing, or acoustics
designed to respond to, absorb, or control soundan acoustic tile
(of a musical instrument or recording) without electronic amplificationan acoustic bass; an acoustic guitar

Derived Forms

acoustically, adverb

Word Origin for acoustic

C17: from Greek akoustikos, from akouein to hear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for acoustic

acoustic

[ ə-kōōstĭk ]

adj.

Of or relating to sound, the sense of hearing, or the perception of sound.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.