/ Dictionary / Index P prognosis: Meaning and Definition of Find definitions for: prog•no•sis Pronunciation: (prog-nō'sis), [key] — pl. -ses a forecasting of the probable course and outcome of a disease, esp. of the chances of recovery. a forecast or prognostication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prognosis (Thesaurus) prognose prognostic Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language