a patronymic, applied by Ovid (Ov. Met. 8.566) to Peirithous, the son of Ixion ; but the plural, Ixionidae, occurs also as a name of the Centaurs. (Lucan, 6.386.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890