pyridine
(noun) a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
Source: WordNet® 3.1
pyridine (plural pyridines)
(organic compound) Any of a class of aromatic heterocyclic compounds containing a ring of five carbon atoms and an nitrogen atom; especially the simplest one, C5H5N.
Source: Wiktionary
Pyr"i*dine, n. Etym: [From Gr. (Physiol. Chem.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
7 February 2025
(noun) a piece of fiction that narrates a chain of related events; “he writes stories for the magazines”
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
