tannin

tannin
Tannic Tan"nic, a. Of or pertaining to tan; derived from, or resembling, tan; as, tannic acid. [1913 Webster]

{Tannic acid}. (Chem.) (a) An acid obtained from nutgalls as a yellow amorphous substance, {C14H10O9}, having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also {tannin}, and {gallotannic acid}. (b) By extension, any one of a series of astringent substances resembling tannin proper, widely diffused through the vegetable kingdom, as in oak bark, willow, catechu, tea, coffee, etc. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Tannin — bezeichnet eine chemische Verbindung, siehe Gallotannin Gruppe von chemischen Verbindungen, siehe Tannine, Tannin Verfahren ein Wesen aus der (hebräischen) Mythologie, siehe Tannin (Mythologie) Siehe auch Tanin …   Deutsch Wikipedia

  • tannin — (n.) vegetable substance capable of converting animal hide to leather, 1802, from Fr. tannin (1798), from tan crushed oak bark containing tannin (see TAN (Cf. tan) (v.)). Tannic acid first recorded 1836, from Fr. acide tannique, inroduced 1834 by …   Etymology dictionary

  • Tannin — Tan nin, n. [Cf. F. tannin.] (Chem.) Same as {Tannic acid}, under {Tannic}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Tannin — Tannin, so v.w. Gerbstoff …   Pierer's Universal-Lexikon

  • Tannīn — Tannīn, s. Gerbsäuren …   Meyers Großes Konversations-Lexikon

  • Tannin — Tannin, s. Gerbsäure …   Lexikon der gesamten Technik

  • Tannin — Tannīn, s. Gerbsäuren …   Kleines Konversations-Lexikon

  • Tannin — Tannin, acidum Tannicum, s. Gerbesäuren …   Herders Conversations-Lexikon

  • tannin — ► NOUN ▪ a yellowish or brownish bitter tasting organic substance present in tea, some barks, grapes, etc. DERIVATIVES tannic adjective. ORIGIN French tanin, from tan tanbark …   English terms dictionary

  • tannin — [tan′in] n. [Fr tanin < tan, TAN1 + in, IN1] any of a group of naturally occurring phenolic compounds that precipitate proteins, alkaloids, and glucosides from solution, and convert hide into leather, including tannic acid: some are present in …   English World dictionary

  • Tannin — For other uses, see Tannin (demon). Tannic acid …   Wikipedia

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