/ Dictionary / Index A acoustic ohm: Meaning and Definition of Find definitions for: acous'tic ohm' Pronunciation: [key] — Acoustics. Acoustics. the unit of acoustic impedance, equal to the impedance of a medium in which a sound pressure of one dyne per square centimeter produces a velocity of one centimeter per second. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acoustic nerve acoustic phonetics Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language