heracleonite

from The Century Dictionary.

• noun Eccles., a follower of Heracleon, a Valentinian Gnostic of the second century, noted as a commentator on the Gospel of John.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Eccl. Hist.) A follower of Heracleon of Alexandria, a Judaizing Gnostic, in the early history of the Christian church.