/ Dictionary / Index P patent foramen ovale: Meaning and Definition of Find definitions for: pat'ent fora'men ova'le Pronunciation: [key] — Pathol. Pathol. a congenital heart defect resulting from failure of the foramen ovale to close shortly after birth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. patent flour patent hammer Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language