/ Dictionary / Index P plackart: Meaning and Definition of Find definitions for: plack•art Pronunciation: (plak'urt), [key] — n. Armor. placate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plack placket Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language