1. (noun)vulcanization, vulcanisation process of treating rubber or rubberlike materials with sulphur at great heat to improve elasticity and strength or to harden them
Definitions of 'vulcanization'
Webster 1913 Dictionary
1. (noun)vulcanization the act or process of imparting to caoutchouc, gutta-percha, or the like, greater elasticity, durability, or hardness by heating with sulphur under pressure