/ Dictionary / Index D Decadron: Meaning and Definition of Find definitions for: Dec•a•dron Pronunciation: (dek'u-dron"), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of dexamethasone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decadron (Thesaurus) decadrachm decaf Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language