Meaning of ACOUSTIC in English
[adjective] - relating to sound or hearingThe microphone converts acoustic waves to electrical signals for transmission.Animals use a whole range of acoustic, visual, and chemical signals in their systems of communication.An acoustic musical instrument is one that is not made louder by electrical equipment.an acoustic guitarSee picture: Guitars(specialized) An acoustic coupler is a device which allows computers to send and receive messages through a telephone.
Cambridge English vocab. Кембриджский английский словарь. 2012