jade-stone UK /ˈdʒeɪdstəʊn/US /ˈdʒeɪdˌstoʊn/ noun1 •(old-fashioned) jade (the semi precious gemstone).At last she drove Ngahue out of the place, and Ngahue departed to a strange land, taking his jade-stone, followed, however, by Hine-tu-a-hoanga. — 1892 formsjade-stones