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A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.

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ONTOLOGY

The science of being. In scholastic philosophy it is the equivalent of metaphysics, or at least of that branch of metaphysics which deals with the philosophy of reality. (Etym. Greek ontos, being + logia, science, knowledge.)

All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.

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