Thyestes: Meaning and Definition of

Thy•es•tes

Pronunciation: (thī-es'tēz), [key]
— n. Class. Myth.
  1. the brother of Atreus who unknowingly ate the flesh of his own sons when served to him by Atreus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.