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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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.)

Wed30 April
Easter

Wednesday of the Second Week of Easter; Opt. Mem. of St. Pius V, Pope and Religious

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Today is the Optional Memorial of St. Pius V (1504-1572). He joined the Dominicans at the age of fourteen; he was sixty-two when he was elected Pope. His reign, though short, was one of the most fruitful of the sixteenth century. To Protestantism, which had proclaimed the Reformation, St. Pius replied by…

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