| tannic acid |
tannin: any of various complex phenolic substances of plant origin; used in tanning and in medicine
출처: wordnet.princeton.edu/perl/webwn
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| tannic acid |
A substance occurring naturally in well water. It is produced by decaying vegetation, and causes the water to have a yellow of light brown color and can provide a bitter taste. There is currently no EPA regulatory level for tannin in water.
출처: www.alpha-plumbing.com/plumbing-terminology-t.htm
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| tannic acid |
Natural tannic acid can be found in the bark of oak trees as well as in cherries, tea and coffee. Used as an astringent, tannic acid may tint the hair and skin brown when applied topically.
출처: www.creatinghealthybeauty.com/glossary_of_natural_...
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| tannic acid |
A pale brown powder which, in solution, is sometimes used in conservation of iron to form a protective black surface film.
출처: www.yorkarchaeology.co.uk/artefacts/glossary.htm
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