/ Dictionary / Index P paschal letter: Meaning and Definition of Find definitions for: pas'chal let'ter Pronunciation: [key] (in the early Christian church) a letter, written by a patriarch, archbishop, or bishop to a cleric under his authority, announcing the date of the next Easter festival. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. paschal lamb Paschen-Back effect Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language