/ Dictionary / Index D dimorphous: Meaning and Definition of Find definitions for: di•mor•phous Pronunciation: (dī-môr'fus), [key] — adj. having two forms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dimorphous (Thesaurus) dimorphite dim-out 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