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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LEX FUNDAMENTALIS

The basic law of the Roman Catholic Church, similar to a constitution for the Church, is a new feature in the history of ecclesiastical legislation. It was called forth by the decisions of the Second Vatican Council.

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