What is "pinacolin"

Pinacolin \Pi*nac"o*lin\, n. [Pinacone + L. oleum oil.] (Chem.) A colorless oily liquid related to the ketones, and obtained by the decomposition of pinacone; hence, by extension, any one of the series of which pinacolin proper is the type.

n. 1 (context chemistry English) A colourless oily liquid related to the ketones, and obtained by the decomposition of pinacone. 2 (context chemistry by extension English) Any of the series of which pinacolin proper is the type.