/ Dictionary / Index H hylomorphism: Meaning and Definition of Find definitions for: hy•lo•mor•phism Pronunciation: (hī"lu-môr'fiz-um), [key] — n. Philos. the theory that every physical object is composed of two principles, an unchanging prime matter and a form deprived of actuality with every substantial change of the object. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hylomorphic hylophagous Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language