acoustic impedance caused by the internal friction of the transmitting medium.
- Acoustic shock
noun a condition characterized by dizziness and partial hearing loss suffered by some people exposed to sudden loud noises over telephone or radio headsets; associated esp with workers in call centres noun a complaint of damaged hearing as a result of telephone workers wearing headphones or earphones being subjected to excessive, continuous, or high-pitched noise […]
- Acoustic stria
acoustic stria acoustic stria n. See medullary stria of fourth ventricle.
- Acoustic theodolite
an acoustic device that records a continuous vertical profile of ocean currents at a particular site.
- Acoustic torpedo
a torpedo guided by sound that either emanates from the target or is emitted by the torpedo and bounces off the target.