Category:Pyridine

Pyr"i*dine, n. Etym: [from gr. (physiol. Chem.)

Defn: a nitrogenous base, c5h5n, obtained from the distillation of Bone oil or coal tar, and by the decomposition of certain alkaloids, As a colorless liquid with a peculiar pungent odor. It is the nucleus Of a large number of organic substances, among which several Vegetable alkaloids, as nicotine and certain of the ptomaïnes, may be Mentioned. See lutidine.