/ Dictionary / Index V Vycor: Meaning and Definition of Find definitions for: Vy•cor Pronunciation: (vī'kôr), [key] — Trademark. Trademark. a brand of durable, highly heat-resistant glass containing approximately 96 percent silica, used chiefly for making laboratory vessels, as beakers, crucibles, and flasks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Vyborg Vyernyi 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