Noun
Extravagantes pl (plural only)
(Christianity) Within the canon law of the Roman Catholic Church, those papal decretals not contained in certain canonical collections which possess a special authority.
In 1569, Sebastian ordered Duarte Nunes de Leão to compile all the laws and legal documents of the kingdom in a collection of Leis Extravagantes known as Código Sebastiânico (Sebastian’s code). Source: Internet