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.
The women's branch of the Trappist Order. Full title is the Cistercian Nuns of the Strict Observance (O.C.S.O.). Founded in France, at Cîteaux, in 1125. The nuns are subject to the abbot general in Rome.