A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.
The fundamental, potential principle of all bodily substances. It is pure passive potency and therefore the completely undetermined basic material of the physical universe; the substratum of all material things remaining unchanged in every physical change that occurs in space and time.
All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.