| slovo | definícia |
tannin
(encz) | tannin,druh třísloviny Zdeněk Brož |
tannin
(encz) | tannin,tanin n: Zdeněk Brož |
tannin
(gcide) | 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] |
Tannin
(gcide) | Tannin \Tan"nin\, n. [Cf. F. tannin.] (Chem.)
Same as Tannic acid, under Tannic.
[1913 Webster] |
tannin
(wn) | tannin
n 1: any of various complex phenolic substances of plant origin;
used in tanning and in medicine [syn: tannin, {tannic
acid}] |
| | podobné slovo | definícia |
chrome tanning bath
(encz) | chrome tanning bath,chromočinicí lázeň [eko.] RNDr. Pavel Piskač |
suntanning
(encz) | suntanning, |
tanning
(encz) | tanning,kožedělný adj: Zdeněk Brožtanning,tříslení n: Zdeněk Brož |
Stannine
(gcide) | Stannine \Stan"nine\ (-n[i^]n), Stannite \Stan"nite\
(-n[imac]t), n. (Min.)
A mineral of a steel-gray or iron-black color; tin pyrites.
It is a sulphide of tin, copper, and iron.
[1913 Webster] |
Tannin
(gcide) | 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]Tannin \Tan"nin\, n. [Cf. F. tannin.] (Chem.)
Same as Tannic acid, under Tannic.
[1913 Webster] |
Tanning
(gcide) | Tan \Tan\, v. t. [imp. & p. p. Tanned; p. pr. & vb. n.
Tanning.] [F. tanner, LL. tannare. See Tan, n.]
1. To convert (the skin of an animal) into leather, as by
usual process of steeping it in an infusion of oak or some
other bark, whereby it is impregnated with tannin, or
tannic acid (which exists in several species of bark), and
is thus rendered firm, durable, and in some degree
impervious to water.
[1913 Webster]
Note: The essential result in tanning is due to the fact that
the tannins form, with gelatins and albuminoids, a
series of insoluble compounds which constitute leather.
Similar results may be produced by the use of other
reagents in place of tannin, as alum, and some acids or
chlorides, which are employed in certain processes of
tanning.
[1913 Webster]
2. To make brown; to imbrown, as by exposure to the rays of
the sun; as, to tan the skin.
[1913 Webster]
3. To thrash or beat; to flog; to switch; as, to tan a
disobedient child's hide. [Colloq.]
[Webster 1913 Suppl. +PJC]Tanning \Tan"ning\, n.
The art or process of converting skins into leather. See
Tan, v. t., 1.
[1913 Webster] |
tanning
(wn) | tanning
n 1: process in which skin pigmentation darkens as a result of
exposure to ultraviolet light
2: beating with a whip or strap or rope as a form of punishment
[syn: whipping, tanning, flogging, lashing,
flagellation]
3: making leather from rawhide |
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