American College of Osteopathic Obstetricians and Gynecologists
- Acoustic feedback
(in an audio system, especially a public-address system) the feedback of sound from a loudspeaker to a microphone, often resulting in a whistling noise caused by electrical oscillations.
- Acoustic guitar
a traditional, unamplified guitar. Contemporary Examples Darren and him were talking and Bruce had an acoustic guitar and picked it up and played the song for Darren. Rourke’s Resurrection Tom Tapp October 7, 2008 George would take out his lyric book and acoustic guitar and play us the song we would be working on that […]
- Acoustic impedance
the total reaction of a medium to the transmission of sound through it, expressed as the ratio of sound pressure to particle velocity at a given point in the medium.
- Acoustic inertance