Decretal
Decretal , adjective
[Latin decretalis, from decretum. See Decree.]
Appertaining to a decree; containing a decree; as, a decretal epistle. — Ayliffe
Decretal , noun
[Late Latin decretale, neut. of Latin decretalis. See Decretal, a.]
1.
(Roman Catholic Church) An authoritative order or decree; especially, a letter of the pope, determining some point or question in ecclesiastical law. The decretals form the second part of the canon law.
2.
(Canon Law) The collection of ecclesiastical decrees and decisions made, by order of Gregory IX., in 1234, by St. Raymond of Pennafort.