銅

(1)a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor

(2)延性順応性のある赤褐色の防腐反磁性金属元素

(3)様々な鉱物の中に存在するが、大きな塊で豊富に見つかる唯一の金属

(4)電気および熱の伝導体として用いられる