(n) deciduous tree of the Amazon and Orinoco Rivers having leathery leaves and fragrant yellow-white flowers; it yields a milky juice that is the chief source of commercial rubber, Syn. Hevea brasiliensis, caoutchouc tree
[トチュウか(トチュウ科);とちゅうか(杜仲科), tochuu ka ( tochuu ka ); tochuuka ( mori naka ka )] (n) (See 杜仲) Eucommiaceae (monotypic plant family containing only the hardy rubber tree)