Semi-arian

n. [See ARIAN.] (Eccl. Hist.) One belonging to a branch of the Arians, who acquiesced in some of the principles of Arius, disguised under more moderate terms. They did not acknowledge the Son to be consubstantial with the Father, that is, of the same substance, but admitted him to be of a like substance with the Father, not by nature, but by a peculiar privilege.