The Collaborative International Dictionary
Lutidine
Lutidine \Lu"ti*dine\, n. [From toluidine, by transposition.] (Chem.) Any one of several metameric alkaloids, C5H3N.(CH3)2, of the pyridine series, obtained from bone oil as liquids, and having peculiar pungent odors. These alkaloids are also called respectively dimethyl pyridine, ethyl pyridine, etc.
Wiktionary
lutidine
n. (context organic compound English) Any of several dimethyl derivatives of pyridine, but especially ''2,6-dimethyl pyridine'' that occurs in coal tar