The nonelastic rubber obtained from the latex of the South American tree Manilkara bidentata. It has been used in the manufacture of golf-ball covers and machine belts.

• 巴拉塔树胶从南美树木巴拿马铁线子的胶乳中得到的无弹性橡胶。曾用于制造高尔夫桌面和机器皮带。