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 ptomaĂŻnes, may be mentioned. See Lutidine.
Source: Webster’s Unabridged Dictionary 1913 Edition
24 May 2025
(adjective) sufficiently significant to affect the whole world; “earthshaking proposals”; “the contest was no world-shaking affair”; “the conversation...could hardly be called world-shattering”
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.
