| slovo | definícia |
Isatis Tinctoria
(gcide) | Indican \In"di*can\, n. [See Indigo.]
[1913 Webster]
1. (Chem.) A glucoside (C14H17NO6) obtained from woad
(indigo plant, Isatis Tinctoria) and other plants (see
indigo), as a yellow or light brown sirup. When purified
it is obtained as spear-shaped crystals. It has a nauseous
bitter taste. By the action of acids, enzymes, etc., it
breaks down into sugar and indigo. It is the source of
natural indigo. Chemically it is the 3-glucoside of
indole, H-indol-3-yl-[beta]-D-glucopyranoside.
[1913 Webster +PJC]
2. (Physiol. Chem.) An indigo-forming substance, found in
urine, and other animal fluids, and convertible into red
and blue indigo (urrhodin and uroglaucin). Chemically, it
is indoxyl sulphate of potash, C8H6NSO4K, and is derived
from the indol formed in the alimentary canal. Called also
uroxanthin.
[1913 Webster] |
Isatis tinctoria
(gcide) | Indigo \In"di*go\, n.; pl. Indigoes. [F. indigo, Sp. indigo,
indico, L. indicum indigo, fr. Indicus Indian. See Indian.]
[1913 Webster]
1. A kind of deep blue, one of the seven prismatic colors.
[1913 Webster]
2. (Chem.) A blue dyestuff obtained from several plants
belonging to very different genera and orders, such as,
the woad, Isatis tinctoria (family Cruciferae),
Indigofera suffroticosa, Indigofera tinctoria (family
Leguminosae), Indigofera Anil, Nereum tinctorium,
Polygonum tinctorium Ait. (family Polygonaceae), etc.;
called also natural indigo. It is a dark blue earthy
substance, tasteless and odorless, with a copper-violet
luster when rubbed. Indigo does not exist in the plants as
such, but is obtained by decomposition of the glycoside
indican.
[1913 Webster]
Note: Commercial indigo contains the essential coloring
principle indigo blue or indigotine, with several other
dyes; as, indigo red, indigo brown, etc., and various
impurities. Indigo is insoluble in ordinary reagents,
with the exception of strong sulphuric acid.
[1913 Webster]
Chinese indigo (Bot.), Isatis indigotica, a kind of woad.
Wild indigo (Bot.), the American herb Baptisia tinctoria
which yields a poor quality of indigo, as do several other
species of the same genus.
[1913 Webster] |
Isatis tinctoria
(gcide) | Pastel \Pas"tel\, n. [F.; cf. It. pastello. Cf. Pastil.]
1. A crayon made of a paste composed of a color ground with
gum water. [Sometimes incorrectly written pastil.]
"Charming heads in pastel." --W. Black.
[1913 Webster]
2. (Bot.) A plant affording a blue dye; the woad ({Isatis
tinctoria}); also, the dye itself.
[1913 Webster] |
Isatis tinctoria
(gcide) | Isatis \I"sa*tis\ (?; 277), n. [L., a kind of plant, Gr. ?
woad.] (Bot.)
A genus of herbs, some species of which, especially the
Isatis tinctoria, yield a blue dye similar to indigo; woad.
[1913 Webster] |
Isatis tinctoria
(gcide) | Woad \Woad\, n. [OE. wod, AS. w[=a]d; akin to D. weede, G. waid,
OHG. weit, Dan. vaid, veid, Sw. veide, L. vitrum.] [Written
also wad, and wade.]
[1913 Webster]
1. (Bot.) An herbaceous cruciferous plant ({Isatis
tinctoria}) of the family Cruciferae (syn.
Brassicaceae). It was formerly cultivated for the blue
coloring matter derived from its leaves. See isatin.
[1913 Webster]
2. A blue dyestuff, or coloring matter, consisting of the
powdered and fermented leaves of the Isatis tinctoria.
It is now superseded by indigo, but is somewhat used with
indigo as a ferment in dyeing.
[1913 Webster]
Their bodies . . . painted with woad in sundry
figures. --Milton.
[1913 Webster]
Wild woad (Bot.), the weld (Reseda luteola). See Weld.
Woad mill, a mill grinding and preparing woad.
[1913 Webster] |
isatis tinctoria
(wn) | Isatis tinctoria
n 1: European biennial formerly grown for the blue coloring
matter yielded by its leaves [syn: dyer's woad, {Isatis
tinctoria}] |
| | podobné slovo | definícia |
Isatis Tinctoria
(gcide) | Indican \In"di*can\, n. [See Indigo.]
[1913 Webster]
1. (Chem.) A glucoside (C14H17NO6) obtained from woad
(indigo plant, Isatis Tinctoria) and other plants (see
indigo), as a yellow or light brown sirup. When purified
it is obtained as spear-shaped crystals. It has a nauseous
bitter taste. By the action of acids, enzymes, etc., it
breaks down into sugar and indigo. It is the source of
natural indigo. Chemically it is the 3-glucoside of
indole, H-indol-3-yl-[beta]-D-glucopyranoside.
[1913 Webster +PJC]
2. (Physiol. Chem.) An indigo-forming substance, found in
urine, and other animal fluids, and convertible into red
and blue indigo (urrhodin and uroglaucin). Chemically, it
is indoxyl sulphate of potash, C8H6NSO4K, and is derived
from the indol formed in the alimentary canal. Called also
uroxanthin.
[1913 Webster]Indigo \In"di*go\, n.; pl. Indigoes. [F. indigo, Sp. indigo,
indico, L. indicum indigo, fr. Indicus Indian. See Indian.]
[1913 Webster]
1. A kind of deep blue, one of the seven prismatic colors.
[1913 Webster]
2. (Chem.) A blue dyestuff obtained from several plants
belonging to very different genera and orders, such as,
the woad, Isatis tinctoria (family Cruciferae),
Indigofera suffroticosa, Indigofera tinctoria (family
Leguminosae), Indigofera Anil, Nereum tinctorium,
Polygonum tinctorium Ait. (family Polygonaceae), etc.;
called also natural indigo. It is a dark blue earthy
substance, tasteless and odorless, with a copper-violet
luster when rubbed. Indigo does not exist in the plants as
such, but is obtained by decomposition of the glycoside
indican.
[1913 Webster]
Note: Commercial indigo contains the essential coloring
principle indigo blue or indigotine, with several other
dyes; as, indigo red, indigo brown, etc., and various
impurities. Indigo is insoluble in ordinary reagents,
with the exception of strong sulphuric acid.
[1913 Webster]
Chinese indigo (Bot.), Isatis indigotica, a kind of woad.
Wild indigo (Bot.), the American herb Baptisia tinctoria
which yields a poor quality of indigo, as do several other
species of the same genus.
[1913 Webster]Pastel \Pas"tel\, n. [F.; cf. It. pastello. Cf. Pastil.]
1. A crayon made of a paste composed of a color ground with
gum water. [Sometimes incorrectly written pastil.]
"Charming heads in pastel." --W. Black.
[1913 Webster]
2. (Bot.) A plant affording a blue dye; the woad ({Isatis
tinctoria}); also, the dye itself.
[1913 Webster]Isatis \I"sa*tis\ (?; 277), n. [L., a kind of plant, Gr. ?
woad.] (Bot.)
A genus of herbs, some species of which, especially the
Isatis tinctoria, yield a blue dye similar to indigo; woad.
[1913 Webster]Woad \Woad\, n. [OE. wod, AS. w[=a]d; akin to D. weede, G. waid,
OHG. weit, Dan. vaid, veid, Sw. veide, L. vitrum.] [Written
also wad, and wade.]
[1913 Webster]
1. (Bot.) An herbaceous cruciferous plant ({Isatis
tinctoria}) of the family Cruciferae (syn.
Brassicaceae). It was formerly cultivated for the blue
coloring matter derived from its leaves. See isatin.
[1913 Webster]
2. A blue dyestuff, or coloring matter, consisting of the
powdered and fermented leaves of the Isatis tinctoria.
It is now superseded by indigo, but is somewhat used with
indigo as a ferment in dyeing.
[1913 Webster]
Their bodies . . . painted with woad in sundry
figures. --Milton.
[1913 Webster]
Wild woad (Bot.), the weld (Reseda luteola). See Weld.
Woad mill, a mill grinding and preparing woad.
[1913 Webster] |
isatis tinctoria
(wn) | Isatis tinctoria
n 1: European biennial formerly grown for the blue coloring
matter yielded by its leaves [syn: dyer's woad, {Isatis
tinctoria}] |
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