Meaning of mares of Diomedes

mares' of Diome'des

Pronunciation: (mârz), [key]
— Class. Myth. Class. Myth.
  1. wild mares owned by Diomedes, a Thracian king, who fed them on human flesh: captured by Hercules in fulfillment of one of his labors.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.