Source : Webster's Revised Unabridged Dictionary (1913)

   {Antimony rubber}, an elastic durable variety of vulcanized
      caoutchouc of a red color. It contains antimony sulphide
      as an important constituent.

   {Hard rubber}, a kind of vulcanized caoutchouc which nearly
      resembles horn in texture, rigidity, etc.

   {India rubber}, caoutchouc. See {Caoutchouc}.

   {Rubber cloth}, cloth covered with caoutchouc for excluding
      water or moisture.

   {Rubber dam} (Dentistry), a shield of thin sheet rubber
      clasped around a tooth to exclude saliva from the tooth.