any tree that yields latex from which rubber is produced, especially Hevea brasiliensis, of the spurge family, native to South America, the chief commercial source of rubber.
Origin
1840-50
Examples from the web for rubber tree
Vinegar is one tough foodstuff, the rubber tree of the food world.
Balloons are manufactured from natural latex, which is the sap of the rubber tree.
Latex is liquid sap from the commercial rubber tree.
Traditional latex gloves are made from the sap of a rubber tree.
Latex products are manufactured from the sap of the rubber tree.
British Dictionary definitions for rubber tree
rubber tree
noun
1.
a tropical American euphorbiaceous tree, Hevea brasiliensis, cultivated throughout the tropics, esp in Malaya, for the latex of its stem, which is the major source of commercial rubber See also Pará rubber