/ Dictionary / Index D DMDT: Meaning and Definition of Find definitions for: DMDT Pronunciation: [key] — Chem. Chem. methoxychlor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. D.M.D. D meson 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