Sisters of Mercy Meaning, Definition & Usage

Definitions
  1. (R. C. Ch.), a religious order founded in Dublin in the year 1827. Communities of the same name have since been established in various American cities. The duties of those belonging to the order are, to attend lying-in hospitals, to superintend the education of girls, and protect decent women out of employment, to visit prisoners and the sick, and to attend persons condemned to death.

Webster 1913