/ Dictionary / Index P pericarditis: Meaning and Definition of Find definitions for: per•i•car•di•tis Pronunciation: (per"i-kär-dī'tis), [key] — n. Pathol. inflammation of the pericardium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pericarditis (Thesaurus) pericardial pericardium Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language