The meaning of CRACKING is very impressive or effective : great. How to use cracking in a sentence.

He scored with a cracking shot into the back of the goal. The marathon began at a cracking (= very fast) pace.

Cracking is the process of breaking into smaller units, especially the process of splitting a large heavy hydrocarbon molecule into smaller, lighter components.

In petrochemistry, petroleum geology and organic chemistry, cracking is the process whereby complex organic molecules such as kerogens or long-chain hydrocarbons are broken down …

crack•ing (ˈkræk ɪŋ) n. 1. (in the distillation of petroleum) the process of breaking down complex hydrocarbons into simpler compounds with lower boiling points, as gasoline. Compare …

: highly purified cocaine in small chips used illegally usually for smoking.

This page describes what cracking is, and the differences between catalytic cracking and thermal cracking used in the petrochemical industry.