Golden fleece Meaning, Definition & Usage

  1. noun in Greek mythology, a fleece of gold owned by the king of Colchis and guarded in a sacred grove by a dragon; recovered by Jason and the Argonauts

WordNet

Definitions
  1. . (a) (Mythol.) The fleece of gold fabled to have been taken from the ram that bore Phryxus through the air to Colchis, and in quest of which Jason undertook the Argonautic expedition. (b) (Her.) An order of knighthood instituted in 1429 by Philip the Good, Duke of Burgundy; called also Toison d'Or.
Definitions
  1. . See under Golden.

Webster 1913