• WordNet 3.6
    • n tannin any of various complex phenolic substances of plant origin; used in tanning and in medicine
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Webster's Revised Unabridged Dictionary
    • n Tannin (Chem) Same as Tannic acid, under Tannic.
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Century Dictionary and Cyclopedia
    • n tannin Same as tannic acid. Also called taya. See tannic.
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Chambers's Twentieth Century Dictionary
    • n Tannin tan′in an astringent substance found largely in oak-bark or gall-nuts, of great use in tanning
    • ***


Webster's Revised Unabridged Dictionary
Cf. F. tannin,
Chambers's Twentieth Century Dictionary
Fr. tannin.


In literature:

Where tannin is not used and only the chemicals are employed, it is called 'tawing' the leather, instead of 'tanning.
"The Wonder Island Boys: Exploring the Island" by Roger Thompson Finlay
A board should cover each pot and spent tannin bark placed around them.
"The Wonder Island Boys: The Mysteries of the Caverns" by Roger Thompson Finlay
The cause of this is generally a want of Tannin.
"The Cultivation of The Native Grape, and Manufacture of American Wines" by George Husmann
Of tannin matters from 5 per cent.
"The Dyeing of Cotton Fabrics" by Franklin Beech
One man only made the comment that the sail wanted "tannin' agen," and that was all.
"The Lost Middy" by George Manville Fenn
It is apt also to store up an undue proportion of tannin, and to be insipid.
"Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting" by Northern Nut Growers Association
Tannin and iron are also useful.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
The bark contains a great deal of tannin, and it has become to some extent an article of commerce.
"The Land of the Kangaroo" by Thomas Wallace Knox
Cotton and linen are prepared with tannin after they have been through the required cleansing, and, if necessary, bleaching operations.
"Vegetable Dyes" by Ethel M. Mairet
Now if I was you I'd try tannin lozenges for the throat.
"Lippincott's Magazine of Popular Literature and Science, Vol. 12, No. 32, November, 1873" by Various
Such foods for example, as contain a considerable portion of tannin, are always constipating.
"The Biology, Physiology and Sociology of Reproduction" by Winfield S. Hall
Burnt alum or pure tannin, 1 oz.
"Practical Taxidermy" by Montagu Browne
The resultant infusion is one in which the percentage of tannin is extremely low.
"The Suffrage Cook Book"
Some wines contain tannin.
"Alcohol: A Dangerous and Unnecessary Medicine, How and Why" by Martha M. Allen
This easily spoils, and therefore it has to be "tanned"; that is, soaked in tannin and water.
"Makers of Many Things" by Eva March Tappan
This search for tannin, by the way, is to blame for much wanton destruction.
"Getting Acquainted with the Trees" by J. Horace McFarland
Tannin is a poison fatal to the true sportsman.
"Punch or the London Charivari, Vol. 147, July 8, 1914" by Various
I 'spains how he do tannin.
"Slave Narratives: a Folk History of Slavery in the United States From Interviews with Former Slaves" by Work Projects Administration
The bark has much of the tannin principle, and with the wood, is used for coloring yellow.
"Soil Culture" by J. H. Walden
Now it is chiefly wanted for the tannin in it; it is said to contain 50 per cent.
"The Amazing Argentine" by John Foster Fraser

In news:

ALEX BOERNER/TREASURE COAST NEWSPAPERS Brown, tannin-stained water pushes its way through the St Lucie Inlet into the Atlantic Ocean Monday morning in Stuart.
Wines that are lean and light, with good acidity and some earthy tannins, like the Etna rossos in the tasting, are among the most versatile.
It has flavors of blackberries and raspberries with hints of smoke, chocolate and coffee lifted with bright acidity and velvety tannins.
It's hard not to order wine at Tannin .
Susan Brune, Tannin 's lawyer, said in a statement, "With the swift jury verdict of acquittal in the criminal case and now this SEC settlement, Mr Tannin is pleased to have resolved these matters.".
Cioffi and Tannin were indicted in June 2008, a year after their hedge funds failed.
Tannin Wine Bar & Kitchen.
This October, Bear Stearns vets Ralph Cioffi and Matthew Tannin stand trial.
Hedge funders Ralph Cioffi, left, and Matthew Tannin , right.
Tannin Is 'Life Blood' Of A Great Red Wine.
these are pretty, sophisticated tannins.
It's a big wine, brimming with currant, chocolate and tannin.
I have absolutely NO idea what tannins are.
Researchers say more tannins may mean more headache pain.
The vintage's best wines can last another decade, but many bottlings lack opulence and show hard tannins.