Definitions for tanninˈtæn ɪn

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Random House Webster's College Dictionary

tan•ninˈtæn ɪn(n.)

  1. any of a group of astringent vegetable principles or compounds, chiefly complex glucosides of catechol and pyrogallol, as the reddish compound that gives tanning properties to oak bark or the whitish compound that occurs in nutgalls.

    Category: Chemistry

Origin of tannin:

earlier tanin < F (1798). See tan1, -in1

Princeton's WordNet

  1. tannin, tannic acid(noun)

    any of various complex phenolic substances of plant origin; used in tanning and in medicine

Wiktionary

  1. tannin(Noun)

    Tannic acid or any of its derivatives.

Webster Dictionary

  1. Tannin(noun)

    same as Tannic acid, under Tannic

The Nuttall Encyclopedia

  1. Tannin

    an astringent principle found in gallnuts and the bark chiefly of the oak.


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