pyridine
n. (வேதி.) காசநோய் மருந்தாகப் பயன்படும் எலும்பு நெய் வடிம மூலப்பொருள்.
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.