/ Dictionary / Index V vulcanize: Meaning and Definition of Find definitions for: vul•can•ize Pronunciation: (vul'ku-nīz"), [key] — -ized, -iz•ing. to treat (rubber) with sulfur and heat, thereby imparting strength, greater elasticity, durability, etc. to subject (a substance other than rubber) to some analogous process, as to harden it. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vulcanize (Thesaurus) vulcanizate vulcanized fiber Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language