Hypertext Webster Gateway: "pyridine"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Pyridine \Pyr"i*dine\, n. [From Gr. ? fire.] (Physiol. Chem.)
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 ptoma["i]nes, may be mentioned.
See {Lutidine}.
From WordNet (r) 1.7 (wn)
pyridine
n : a toxic colorless flammable liquid organic base with a
disagreeable odor; usually derived from coal
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