noun, Roman Catholic Church.
a member of one of several congregations of sisters founded in 1634 by St. Vincent de Paul.
any of several other orders of nuns devoted to teaching, care of the sick, etc.
[luh-ret-oh] /ləˈrɛt oʊ/ noun, Roman Catholic Church. 1. a member of a congregation of sisters founded at Loretto, Kentucky, in 1812 and engaged in educational and missionary works.
noun, Roman Catholic Church. 1. a member of a congregation of sisters founded in Dublin in 1827 by Catherine McAuley (1787–1841) and engaged chiefly in works of spiritual and corporal mercy.
noun in a polygamous marriage, another wife of a woman’s husband Examples The newspaper took photos of the sister-wives leaving church.
adjective 1. of or relating to any pope named Sixtus.