/ Dictionary / Index E elastic wave: Meaning and Definition of Find definitions for: elas'tic wave' Pronunciation: [key] — Physics. Physics. a wave propagated by the elastic deformation of a medium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. elastic tissue elastin Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language