LucyPronunciation: /ˈluːsi/Definition of Lucy the nickname of a partial female skeleton of a fossil hominid found in Ethiopia in 1974, about 3.2 million years old and 1.2 m (4 ft) in height. Australopithecus afarensis, family Hominidae. This species is regarded by many as the ancestor of all subsequent Australopithecus and Homo species Lucy in other Oxford dictionaries Definition of Lucy in the US English dictionary
