Catholic Culture Trusted Commentary
Catholic Culture Trusted Commentary

Catholic Dictionary

Find accurate definitions of over 5,000 Catholic terms and phrases (including abbreviations). Based on Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.

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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.