LUTIDINE

Lu"ti*dine, n. Etym: [From toluidine, by transposition.] (Chem.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition