acoustic

acoustic
[ə'ku:stɪk]
adjective
1》 relating to sound or hearing.
    ↘(of building materials) used for soundproofing or modifying sound.
    ↘(of a device or system) utilizing sound energy.
    ↘(of an explosive mine) set off by sound waves.
2》 (of popular music or musical instruments) not having electrical amplification.
noun
1》 the properties of a room or building that determine how sound is transmitted in it.
2》 (acoustics) [treated as sing.] the branch of physics concerned with the properties of sound.
Derivatives
acoustical adjective
acoustically adverb
acoustician noun
Origin
C17: from Gk akoustikos, from akouein 'hear'.

English new terms dictionary. 2014.

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