i.e.the Homœan creed of Ariminum, as revised at Nike and accepted at the Acacian Synod of Constantinople in 360.  George is presumably the George bp. of Laodicea, who at Seleucia opposed the Acacians, but appears afterwards to have become reconciled to that party, and to have joined them in persecuting the Catholics at Constantinople.  cf. Basil, Ep. ccli.