/ Dictionary / Index V viscoelastic: Meaning and Definition of Find definitions for: vis•co•e•las•tic Pronunciation: (vis"kō-i-las'tik), [key] — adj. Physics. pertaining to a substance having both viscous and elastic properties. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: viscoelastic (Thesaurus) viscid viscoid Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language