/ Dictionary / Index V valvulotomy: Meaning and Definition of Find definitions for: val•vu•lot•o•my Pronunciation: (val"vyu-lot'u-mē), [key] — pl. -mies. the opening, slitting, or fracturing of a heart valve. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: valvulotomy (Thesaurus) valvulitis vambrace Related Content Daily Word Quiz: ingenuity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language