EXAMPLES FROM THE WEB FOR ACOUSTIC
The purpose of the roof was doubtless to add to the acoustic effect.
And how comes it that the disturbance always takes an acoustic form?
This theatre it may be noted is one of the best for its acoustic properties in London.
There would be no sound without the acoustic nerve and the brain.
I had frequently been struck by the acoustic properties of this hallway.
The acoustic properties of the building are surprisingly good.
I am in a fire-proof house here, and the acoustic conditions are good.
The development of the acoustic picture (the tone-picture) is like the bath.
See also, Acoustic phenomena, and Materializations (tactile).
This is owing to the association of the motor and the acoustic memory-image in the brain.
WORD ORIGIN
c.1600, from French acoustique, from Greek akoustikos "pertaining to hearing," from akoustos "heard, audible," verbal adjective from akouein "to hear," probably from copulative prefix a- + koein "to mark, perceive, hear," from PIE *kous- "to hear," perhaps from root *(s)keu- "to notice, observe" (see caveat). Acoustic guitar (as opposed to electric) attested by 1958. Related: Acoustical; acoustically.