Ule \U"le\ ([=u]"l[-e]), n. [Sp.] (Bot.)
   A Mexican and Central American tree (Castilloa elastica and
   Castilloa Markhamiana) related to the breadfruit tree. Its
   milky juice contains caoutchouc. Called also ule tree.
   [1913 Webster]

	

	Caoutchouc \Caout"chouc\, n. [F. caoutchouc, from the South
   American name.]
   A tenacious, elastic, gummy substance obtained from the milky
   sap of several plants of tropical South America (esp. the
   euphorbiaceous tree Siphonia elastica or Hevea
   caoutchouc), Asia, and Africa. Being impermeable to liquids
   and gases, and not readly affected by exposure to air, acids,
   and alkalies, it is used, especially when vulcanized, for
   many purposes in the arts and in manufactures. Also called
   India rubber (because it was first brought from India, and
   was formerly used chiefly for erasing pencil marks) and gum
   elastic. See Vulcanization.
   [1913 Webster]

   Mineral caoutchouc. See under Mineral.
      [1913 Webster]

	

	caoutchouc
     n : latex from trees (especially trees of the genera Hevea and
         Ficus) [syn: rubber, India rubber, gum elastic]

	

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