1. (noun) 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

• caoutchouc tree
• para rubber tree

1. (noun) 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

• angiospermous tree
• flowering tree