/ Dictionary / Index A automorphism: Meaning and Definition of Find definitions for: au•to•mor•phism Pronunciation: (ô"tu-môr'fiz-um), [key] — n. Math. an isomorphism from a given set to itself. Cf. inner automorphism, outer automorphism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. automorphic automotive Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language