The Collaborative International Dictionary
Redemptorist \Re*demp"tor*ist\ (-t?r*?st), n. [F. r['e]demptoriste, fr. L. redemptor redeemer, from redinere. See Redeem.] (R.C.Ch.) One of the Congregation of the Most Holy Redeemer, founded in Naples in 1732 by St. Alphonsus Maria de Liquori. It was introduced onto the United States in 1832 at Detroit. The Fathers of the Congregation devote themselves to preaching to the neglected, esp. in missions and retreats, and are forbidden by their rule to engage in the instruction of youth.
Douglas Harper's Etymology Dictionary
member of the Congregation of the Most Holy Redeemer (founded Naples, 1732, by St. Alphonsus Liguori), 1835 in English. Fem. form is Redemptoristine.
Wiktionary
n. A member of the Roman Catholic missionary congregation of the Most Holy Redeemer (i.e. Jesus Christ), founded in 1732 by Saint Alphonsus Maria of Liguori
Usage examples of "redemptorist".
He liked the money and all and the traveling and the food was terrific, but his brother was getting married at Redemptorist Church in New Orleans and he had to get back.
But if, as I suppose, from their origin and from what you say, they are Roman Catholics, then I believe the Redemptorist Fathers are the people to apply to.
Father Vladimir Pecherin, a Russian who had become a Roman Catholic and a priest of the Redemptorist Order.
August when she was assigned to the convent of the Redemptorists at Riedishiem, favored the French wounded at the expense of the German wounded.