Webster’s Revised Unabridged Dictionary · 1913
Semi-Arian
Sem′i-A′ri·an (·ā′rĭ·an), n. [See Arian.] (Eccl. Hist.) A member of a branch of the Arians which 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.
Sem′i-A′ri·an, a. Of or pertaining to Semi-Arianism.