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acous·tic ə-'kü-stik or acous·ti·cal -sti-kəl adj of or relating to the sense or organs of hearing, to sound, or to the science of sounds <\acoustic apparatus of the ear> <\acoustic energy>: as
a) deadening or absorbing sound <\acoustic tile>
b) operated by or utilizing sound waves
acous·ti·cal·ly -k(ə-)lē adv
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adj.
of or relating to sound or the sense of hearing.
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acous·tic (ə-k
sґtik) [Gr. akoustikos] pertaining to sound; called also phonic.
Medical dictionary. 2011.