Socinian n 1: an adherent of the teachings of Socinus; a Christian who rejects the divinity of Christ and the Trinity and original sin; influenced the development of Unitarian theology
Socinian \So*cin"i*an\, a. Of or pertaining to Socinus, or the Socinians. [1913 Webster]
Socinian \So*cin"i*an\, n. One of the followers of Socinus; a believer in Socinianism. [1913 Webster]