Source : Webster's Revised Unabridged Dictionary (1913)

Collidine \Col"li*dine\, n. [Gr. ko`lla glue.] (Chem.)
   One of a class of organic bases, {C8H11N}, usually pungent
   oily liquids, belonging to the pyridine series, and obtained
   from bone oil, coal tar, naphtha, and certain alkaloids.