methylchloroisothiazolinone

An ingredient I just found in Pantene Pro-V shampshit.
"This here Methylchloroisothiazolinone is a mighty gargantuant word to pronunciate."
by Tom L. December 21, 2006
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Methylchloroisothiazolinone

The longest word on the back of shampoo bottles. Often discovered, examined, and eventually memorised by people who are chronically bored while taking their showers. Also often used to boast an individual's verbosity.
by Alexander Superslim October 09, 2017
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