— acoustically , adv.
/euh kooh"stik/ , adj. Also, acoustical .
1. pertaining to the sense or organs of hearing, to sound, or to the science of sound.
2. (of a building material) designed for controlling sound.
a. of, pertaining to, or being a musical instrument whose sound is not electrically enhanced or modified.
b. arranged for or made up of such instruments: an acoustic solo; an acoustic group.
4. Obs. a remedy for deafness or imperfect hearing.
[ 1595-1605; akoustikós. See ACOUASM, -TIC ]