acoustic

IPA: ʌkˈustɪk

(usually in the plural) The properties or qualities of a room or building that determine how sound is transmitted in it.
(medicine) A medicine or other agent to assist hearing.
Clipping of acoustic guitar. [A hollow-body guitar of the older variety, in contradistinction to an electric guitar.]

Pertaining to the sense of hearing, the organs of hearing, or the science of sounds.
(architecture) (of building materials) Used for soundproofing or modifying sound.
Utilizing sound energy in its operation. (of a device or system)
(weaponry) (of an explosive mine or other weapon) Able to be set off by sound waves.
(music) Naturally producing or produced by an instrument without electrical amplification or the need thereof.
(humorous or proscribed) Non-electric; mechanical.

Examples of "acoustic" in Sentences

For that reason it is frequently called the acoustic nerve ( "hear" G), or auditory nerve ( "hear" L).
Jordan has a choral singing background but prefers the term 'acoustic music' rather than 'folk' to describe her work.
Except for the door and soundproof window, the entire studio is lined in acoustic tile with strange Pollockian patterns of tiny holes.
"The noises generated by ships create what I call acoustic smog," said Michel Andre, director of the Laboratory of Applied Bio-Acoustics in Barcelona.
They have set up a long-term acoustic monitoring device on the sea floor that will pick up marine mammal calls to help track the impact on population sizes over time.
With that said, I worry that the report might seem more promising that it is ... in acoustic terms, reducing noise by "50%" usually just means making a noise quieter by 10dB.
"Villchur's development of what he called the acoustic suspension woofer made it possible for music lovers to buy loudspeakers that were domestically acceptable," Mr. Atkinson said in a 2009 interview.
While surveying the calls of male frogs and toads engaged in acoustic displays for females, researchers recorded approximately 5,000 boreal chorus frogs, wood frogs and western toads at 54 beaver ponds over a two-year period.