Catholic Culture Resources
Catholic Culture Resources

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 habit of knowing the basic principles of the moral law; the knowledge of the universal first principles of the practical order. Sometimes applied to conscience, which is, however, rather the mind's concrete application of known principles, judging on the moral goodness or badness of a specific human action. (Etym. Greek synteresis, spark of conscience.)