tannic acid
noun Chemistry.
See under tannin.
Origin of tannic acid
First recorded in 1830–40
Words nearby tannic acid
tanner growth chart,
tanner stage,
tannery,
tannhäuser,
tannic,
tannic acid,
tannie,
tanniferous,
tannin,
tanning,
tanning bed
Definition for tannic acid (2 of 2)
tannin
[ tan-in ]
/ ˈtæn ɪn /
noun
Chemistry.
any of a group of astringent vegetable principles or compounds, chiefly complex glucosides of catechol and pyrogallol, as the reddish compound that gives the tanning properties to oak bark or the whitish compound that occurs in large quantities in nutgalls (common tannin, tannic acid).
any of these compounds occurring in wine and imparting an astringent taste, especially in red wine.
OTHER WORDS FROM tannin
non·tan·nin, nounExample sentences from the Web for tannic acid
And the tannic-acid factory needs a great deal of fresh water.
The Argentine Republic |Pierre Denis
British Dictionary definitions for tannic acid
tannin
/ (ˈtænɪn) /
noun
any of a class of yellowish or brownish solid compounds found in many plants and used as tanning agents, mordants, medical astringents, etc. Tannins are derivatives of gallic acid with the approximate formula C 76 H 52 O 46
Also called: tannic acid
Word Origin for tannin
C19: from French
tanin, from
tan
1
Medical definitions for tannic acid
tannic acid
n.
A white or yellowish astringent powder used as a denaturant and in tanning and textiles.
A lustrous yellowish to light brown amorphous, powdered, flaked, or spongy mass derived from the bark and fruit of many plants and used as a mordant and to clarify wine and beer.
Scientific definitions for tannic acid (1 of 2)
tannic acid
[ tăn′ĭk ]
A lustrous, yellow-brown, amorphous substance, having the approximate chemical composition C76H52O46. It is derived from the bark and fruit of many plants and is used in tanning leather, in fixing dyes to materials, and in clarifying wine and beer.
Scientific definitions for tannic acid (2 of 2)
tannin
[ tăn′ĭn ]
Any of various compounds, including tannic acid, that occur naturally in the bark and fruit of various plants, especially the nutgalls, certain oaks, and sumac. Tannins are polyphenols, and form yellowish to light brown amorphous masses that can be powdery, flaky, or spongy. They bind proteins and are used in dyeing, in tanning leather, in clarifying wine and beer, and as an astringent in medicine. Tannins also give color and flavor to black tea.
Any of various other substances that promote the tanning of leather, such as chromium salts.