Melchizedekians a sect which arose in the Christian Church about the beginning of the 3d century, and was composed mainly of Jewish converts. They affirmed that Melchizedek was not a man, but a heavenly power superior to Jesus Christ; for Melchizedek, they said, was' the intercessor and mediator of the angels; and Jesus Christ was only so for man, and his priesthood only a copy of that of Melchizedek. Similar views were revived among the Hieracites. See Theodoret, Hoeres. Sat. 2:5, 6.