/ Dictionary / Index I isomorphism: Meaning and Definition of Find definitions for: i•so•mor•phism Pronunciation: (ī"su-môr'fiz-um), [key] — n. the state or property of being isomorphous or isomorphic. a one-to-one relation onto the map between two sets, which preserves the relations existing between elements in its domain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: isomorphism (Thesaurus) isomorphic isomorphous Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language