/ Dictionary / Index P prednisone: Meaning and Definition of Find definitions for: pred•ni•sone Pronunciation: (pred'nu-sōn", -zōn"), [key] — n. Pharm. an analogue of cortisone, CHO, used as an anti-inflammatory, immunosuppressive, and antineoplastic in the treatment of various diseases. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prednisone (Thesaurus) prednisolone predominance Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language