cracking
1. crack.ing \'krak-in\ aj(or av) : GREAT, SMASHING 2. cracking n : a process in which relatively heavy hydrocarbons are broken up by heat i nto lighter products
1. crack.ing \'krak-in\ aj(or av) : GREAT, SMASHING 2. cracking n : a process in which relatively heavy hydrocarbons are broken up by heat i nto lighter products