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acoustic

Syllabification: (a·cous·tic)
Pronunciation: /əˈko͞ostik/

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Definition of acoustic

adjective

[attributive]
  • 1relating to sound or the sense of hearing:dogs have a much greater acoustic range than humans
  • (of building materials) used for soundproofing or modifying sound:acoustic tiles
  • (of an explosive mine or other weapon) able to be set off by sound waves.
  • 2(of music or musical instruments) not having electrical amplification:acoustic guitar
  • (of a person or group) playing musical instruments without electrical amplification.

noun

  • 1 (usually acoustics) the properties or qualities of a room or building that determine how sound is transmitted in it:Symphony Hall has perfect acoustics
  • 2 (acoustics) [treated as singular] the branch of physics concerned with the properties of sound.
  • 3a musical instrument without electrical amplification, typically a guitar.

Derivatives

acoustical

adjective

acoustically

Pronunciation: /-ik(ə)lē/

adverb

Origin:

mid 17th century: from Greek akoustikos, from akouein 'hear'

acoustic in other Oxford dictionaries

Definition of acoustic in the British & World English dictionary