n. One of an ecclesiastical order of women in the early church, who discharged for members of their own sex those parts of the diaconal office which could not conveniently or fitly be performed by men.n. A member of an order of women more or less fully established in recent times in several Protestant churches, with duties similar to the preceding; also, a member of the Institution of Deaconesses first established by Pastor Fliedner, of the United Evangelical Church of Prussia, at Kaiserswerth in 1836.