- relating to or denoting a period in the 4th and 3rd millennia bc, chiefly in the Near East and SE Europe, during which some weapons and tools were made of copper. This period was still largely Neolithic in character. Also called Eneolithic.
- (as noun the Chalcolithic) the Chalcolithic period. Also called Copper Age.
early 20th century: from Greek khalkos 'copper' + lithos 'stone' + -ic