Dictionary.net

of paint or varnish; having the appearance of alligator hide

the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)

lose control of one's emotions; "When she heard that she had not passed the exam, she lost it completely"; "When her baby died, she snapped"

of paint or varnish; having the appearance of alligator hide

making a loud sharp sound as of a rifle shot or a breaking branch or a whip; "lion tamers with their cracking whips"

the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)