cracking cracking /ˈkrækɪŋ/

adjective

1. Very good  ( bang-up , corking , cracking , dandy , groovy , keen , neat , nifty , not bad , bully , great , old , peachy , slap-up , smashing , swell )
   very good
    He did a bully job
   he did a bully job
    A neat sports car
   a neat sports car
    Had a great time at the party
   had a great time at the party
    You look simply smashing
   you look simply smashing
    We had a grand old time
   we had a grand old time
   

noun

1. () The act of cracking something  ( crack , fracture , cracking )
   the act of cracking something
   
2. () A sudden sharp noise  ( snap , crack , cracking )
   a sudden sharp noise
    The crack of a whip
   the crack of a whip
    He heard the cracking of the ice
   he heard the cracking of the ice
    He can hear the snap of a twig
   he can hear the snap of a twig
   
3. The process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)  ( cracking )
   the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)
    The refinery utilizes cracking to transform the heavy molecules into usable fuel.
   The refinery utilizes cracking to transform the heavy molecules into usable fuel.