/ Dictionary / Index C compression wave: Meaning and Definition of Find definitions for: compres'sion wave" Pronunciation: [key] a shock wave that compresses the medium through which it is transmitted. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. compression ratio compressive Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language