/ Dictionary / Index M medroxyprogesterone: Meaning and Definition of Find definitions for: me•drox•y•pro•ges•ter•one Pronunciation: (mi-drok"sē-prō-jes'tu-rōn"), [key] — n. Pharm. a progesterone derivative, CHO, used in the treatment of abnormal uterine bleeding and secondary amenorrhea, as a contraceptive of long duration, and in the treatment of certain cancers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: medroxyprogesterone (Thesaurus) Medon Med.Sc.D. Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language