/ Dictionary / Index D dexamethasone: Meaning and Definition of Find definitions for: dex•a•meth•a•sone Pronunciation: (dek"su-meth'u-sōn", -zōn"), [key] — n. Pharm. a crystalline, water-soluble steroid, CHFO, used in the treatment of certain allergic or inflammatory conditions, as rheumatoid arthritis, bronchial asthma, or dermatosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dexamethasone (Thesaurus) dewy-eyed Dexamyl Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language