ebonite
n. வன்கந்தகம், தொய்வகம் கலந்த கந்தகக் கலவை.
Eb"on*ite, n. (Chem.) Defn: A hard, black variety of vulcanite. It may be cut and polished, and is used for many small articles, as combs and buttons, and for insulating material in electric apparatus.