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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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A PRIORI

From what is before, that is, from cause to effect. Reasoning from principles to conclusions, or from prior knowledge to consequences; therefore deduction. A basic premise of Catholic morality in reducing general norms to specific practice.

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

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