jade /dʒeɪd/ BrE AmE noun [uncountable]
[ Date: 1500-1600 ; Language: French ; Origin: from early Spanish (piedra de la) ijada '(stone of the) lower back' ; because it was believed that jade cures pain in the kidneys ]
1 . a hard, usually green stone often used to make jewellery:
a jade necklace
2 . ( also jade green ) the light green colour of jade