a hard usually black rubber produced by vulcanizing natural rubber with large amounts of sulphur. It is resistant to chemical attack: used for chemical containers, electrical insulators, etc
Also called: ebonite
WordReference Random House Unabridged Dictionary of American English © 2026
vul•can•ite
(vul′kə nīt′),USA pronunciation n.
- Chemistrya hard, readily cut and polished rubber, obtained by vulcanizing rubber with a large amount of sulfur, used in the manufacture of combs, buttons, and for electric insulation. Also called ebonite.
- Vulcan + -ite1 1830–40
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