Of or pertaining to the Trinity, the doctrine of the Trinity, or believers in that doctrine.

One who believes in the doctrine of the Trinity.

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 Moslems.

a believer in the traditional Christian doctrine that God is a Trinity (Father, Son and Spirit) and yet a unity.

a Catholic even though he or she may profess to be a Protestant

Holding or professing belief in the Trinity

A believer in the union of three in one Godhead

of or referring to the Trinity, the union of three persons (Father, Son, and Holy Spirit) in one nature as God