—adj.
1 of or relating to St Augustine, a Doctor of the Church (d. 430), or his doctrines.
2 belonging to a religious order observing a rule derived from St Augustine's writings.
—n.
1 an adherent of the doctrines of St Augustine.
2 one of the order of Augustinian friars.
Etymology: L Augustinus Augustine
Useful english dictionary. 2012.