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QUINOLINE
Noun
quinoline (plural quinolines)
(organic compound) Any of a class of aromatic heterocyclic compounds containing a benzene ring fused with a pyridine ring; especially the simplest such compound, C9H7N.
Source: Wiktionary
Quin"o*line, n. Etym: [Quinine + L. oleum oil + -ine.] (Chem.)
Definition: A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type. [Written also chinoline.]
Source: Webster’s Unabridged Dictionary 1913 Edition
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15 March 2025
TRUNCATION
(noun) the replacement of an edge or solid angle (as in cutting a gemstone) by a plane (especially by a plane that is equally inclined to the adjacent faces)
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