hylomorphism: Meaning and Definition of

hy•lo•mor•phism

Pronunciation: (hī"lu-môr'fiz-um), [key]
— n. Philos.
  1. 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.