vulcanized rubber

from The Collaborative International Dictionary of English v.0.48
Vulcanize \Vul"can*ize\, v. t. [imp. & p. p. {Vulcanized}; p.
   pr. & vb. n. {Vulcanizing}.]
   To change the properties of, as caoutchouc, or India rubber,
   by the process of vulcanization.
   [1913 Webster]

   {Vulcanized fiber}, paper, paper pulp, or other fiber,
      chemically treated, as with metallic chlorides, so as to
      form a substance resembling ebonite in texture, hardness,
      etc. --Knight.

   {Vulcanized rubber}, India rubber, vulcanized.
      [1913 Webster]
    

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