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.
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- Acoustic mass
. the effect of inertia in an acoustic system, an impeding of the transmission of sound through the system.
- Acoustic meatus
acoustic meatus acoustic meatus n. the p-ssage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; external acoustic meatus. a c-n-l running through the petrous portion of the temporal bone, giving p-ssage to the facial and vestibulocochlear nerves and to the labyrinthine artery and veins; internal acoustic […]
- Acoustic mine
a naval mine designed to be exploded by the vibration of the propeller of a p-ssing ship or by the sound of water along the hull.
- Acoustic nerve
. either one of the eighth pair of cranial nerves, consisting of sensory fibers that conduct impulses from the organs of hearing and from the semicircular c-n-ls to the brain. historical examples there would be no sound without the acoustic nerve and the brain. urania camille flammarion acoustic nerve: connects the auditory pits or other […]
- Acoustic neurilemoma
acoustic neurilemoma acoustic neurilemoma n. a benign neoplasm of the intracranial segment of the eighth cranial nerve. also called acoustic neuroma.