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Meaning of vulcanize

vul•can•ize

Pronunciation: (vul'ku-nīz"), [key]
— -ized, -iz•ing.
  1. to treat (rubber) with sulfur and heat, thereby imparting strength, greater elasticity, durability, etc.
  2. 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.
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