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.

Nearby words

  1. acosta's disease,
  2. acotyledon,
  3. acouasm,
  4. acouchi,
  5. acousma,
  6. acoustic aphasia,
  7. acoustic coupler,
  8. acoustic feature,
  9. acoustic feedback,
  10. acoustic guitar

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 Formsacoustically, 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

Word Origin and History for acoustic

acoustic

adj.

c.1600, from French acoustique, from Greek akoustikos "pertaining to hearing," from akoustos "heard, audible," verbal adjective from akouein "to hear," probably from copulative prefix a- + koein "to mark, perceive, hear," from PIE *kous- "to hear," perhaps from root *(s)keu- "to notice, observe" (see caveat). Acoustic guitar (as opposed to electric) attested by 1958. Related: Acoustical; acoustically.

Online Etymology Dictionary, © 2010 Douglas Harper

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.