(n.) 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 ptomaines, may be mentioned. See Lutidine.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Pyridine. Retrieved October 2, 2026, from http://smartdefine.org/pyridine/definitions/2051353 |
| Chicago | Webster's. 2011. "Pyridine" http://smartdefine.org/pyridine/definitions/2051353 (accessed October 2, 2026). |
| Harvard | Webster's 2011, Pyridine, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/pyridine/definitions/2051353>. |
| MLA | Webster's. "Pyridine" 27 May 2011. Web. 2 October 2026. <http://smartdefine.org/pyridine/definitions/2051353> |