Cyclops (plural Cyclopes), in Greek mythology, shaggy giant with a single large eye in the center of his forehead. Homer's Cyclopes were lawless Sicilian herdsmen, one of whom, Polyphemus, was met by Odysseus. Other mythological Cyclopes include 3 blacksmith sons who were imprisoned in Tartarus by their father, Uranus, and who, in return for their freedom, helped Hephaestus make Zeus's thunderbolts in his forge under Mt. Etna; and the Cyclopes who built the great walls of Tiryns and Mycenae.
See also: Mythology.