Definition of "acoustic" in English

adjective

1. Pertaining to the sense of hearing, the organs of hearing, or the science of sounds.

2. (music) Naturally producing or produced by an instrument without electrical amplification or the need thereof.

   • acoustic guitar, acoustic piano
   • Coordinate term: unplugged

3. (transferred sense, humorous or proscribed) Non-electric; mechanical or otherwise basic.

   • acoustic bike

noun

1. (usually in the plural) The properties or qualities of a room or building that determine how sound is transmitted in it.

2. (medicine) A medicine or other agent to assist hearing.

3. Clipping of acoustic guitar.

adjective

1. (social media, offensive) Euphemistic form of autistic.