Definition of Lucy in US English:


proper noun

  • The nickname of a partial female skeleton of a fossil hominid found in Ethiopia in 1974, about 3.2 million years old and 3 feet 8 inches (1.1 m) in height.

    Australopithecus afarensis, family Hominidae. This species is regarded by many as the ancestor of all subsequent Australopithecus and Homo species