"crackings" in the noun sense
1. crack, cracking, snap
a sudden sharp noise
"the crack of a whip"
"he heard the cracking of the ice"
"he can hear the snap of a twig"
2. fracture, crack, cracking
the act of cracking something
3. 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)
Source: WordNet® (An amazing lexical database of English)
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