(n)process of treating rubber or rubberlike materials with sulphur at great heat to improve elasticity and strength or to harden them, Syn.vulcanisation
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
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 ]