'Vulcanization' definitions:

Definition of 'vulcanization'

(from WordNet)
noun
Process of treating rubber or rubberlike materials with sulphur at great heat to improve elasticity and strength or to harden them [syn: vulcanization, vulcanisation]

Definition of 'Vulcanization'

From: GCIDE
  • Vulcanization \Vul`can*i*za"tion\, n. [See Vulcan.] The act or process of imparting to caoutchouc, gutta-percha, or the like, greater elasticity, durability, or hardness by heating with sulphur under pressure. [1913 Webster]