A process in which large molecules of a hydrocarbon are broken down intoÒ€¦. A process in which large molecules of a hydrocarbon are broken down intoÒ€¦. (in the distillation of petroleum or the like) the process of breaking down certain hydrocarbons into simpler ones of lower boiling points by means of excess heat, Ò€¦

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Decomposition of a complex substance by the application of Ò€¦ The meaning of cracking is very impressive or effective : How to use cracking in a sentence. Cracking is the process of breaking into smaller units, especially the process of splitting a large heavy hydrocarbon molecule into smaller, lighter components.