/ Dictionary / Index I isomorphic: Meaning and Definition of Find definitions for: i•so•mor•phic Pronunciation: (ī"su-môr'fik), [key] — adj. different in ancestry, but having the same form or appearance. isomorphous. pertaining to two sets related by an isomorphism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: isomorphic (Thesaurus) isomorph isomorphism Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language