/ Dictionary / Index A acoustic torpedo: Meaning and Definition of Find definitions for: acous'tic torpe'do Pronunciation: [key] a torpedo guided by sound that either emanates from the target or is emitted by the torpedo and bounces off the target. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acoustic theodolite acoustimeter Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language