quinoline [kwin-l-een, -in] ExamplesWord Origin noun Chemistry.

  1. a colorless, liquid, water-immiscible, nitrogenous base, C9H7N, having a disagreeable odor, occurring in coal tar, and usually prepared by oxidizing a mixture of glycerol and aniline: used as a solvent and reagent and to make dyes.

Origin of quinoline First recorded in 1835–45; quin(ine) + -ol1 + -ine2 Also called leucoline. Examples from the Web for quinoline Historical Examples of quinoline

  • The antipyretic medicines which we have first to consider are derivatives of quinoline.


    Raphael Meldola

  • When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series.

    Scientific American Supplement, No. 415, December 15, 1883


  • (d) The dye is thioflavine S., quinoline yellow, or one of their allies.

    The Manufacture of Paper

    Robert Walter Sindall

  • This is not exactly the case with the higher groups of alkaloids—the derivatives of pyridine and quinoline.

    Scientific American Supplement, No. 623, December 10, 1887


  • Most of these are of a basic character, and belong to the pyridine and the quinoline series.

    Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5


  • British Dictionary definitions for quinoline quinoline noun

    1. an oily colourless insoluble basic heterocyclic compound synthesized by heating aniline, nitrobenzene, glycerol, and sulphuric acid: used as a food preservative and in the manufacture of dyes and antiseptics. Formula: C 9 H 7 N
    2. any substituted derivative of quinoline

    quinoline in Medicine quinoline [kwĭn′ə-lēn′, -lĭn] n.

    1. An aromatic organic base synthesized or obtained from coal tar and used as a food preservative and in making antiseptics.

    quinoline in Science quinoline [kwĭn′ə-lēn′, -lĭn]

    1. An aromatic organic liquid having a pungent, tarlike odor. Quinoline is a base and is obtained from coal tar or is synthesized. It is used as a food preservative and in making antiseptics and dyes. Chemical formula: C9H7N.
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