Dictionary
vul•can•ite
Pronunciation: (vul'ku-nīt"), [key]—
n.
a 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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.