Trin`i*ta"ri*an (?), a. [Cf. F. trinitaire. See Trinity.]
Of or pertaining to the Trinity, the doctrine of the Trinity, or believers in that doctrine.
© Webster 1913.
Trin`i*ta"ri*an, n.
1.
One who believes in the doctrine of the Trinity.
2. Eccl. Hist.
One of a monastic order founded in Rome in 1198 by St. John of Matha, and an old French hermit, Felix of Valois, for the purpose of redeeming Christian captives from the Mohammedans.
© Webster 1913.