Definify.com
Webster 1913 Edition
Indigo
In′di-go
,Noun.
pl.
Indigoes
(#)
. 1.
A kind of deep blue, one of the seven prismatic colors.
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
. ☞ 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.
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.In′di-go
,Adj.
Having the color of, pertaining to, or derived from, indigo.
Indigo berry
(Bot.)
, the fruit of the West Indian shrub
– Randia aculeata
, used as a blue dye. Indigo bird
(Zool.)
, a small North American finch (
– Cyanospiza cyanea
). The male is indigo blue in color. Called also indigo bunting
. Indigo blue
. (a)
The essential coloring material of commercial indigo, from which it is obtained as a dark blue earthy powder, with a reddish luster,
C16H10N2O2
, which may be crystallized by sublimation. Indigo blue is also made from artificial amido cinnamic acid, and from artificial isatine; and these methods are of great commercial importance. Called also indigotin
. (b)
A dark, dull blue color like the indigo of commerce.
– Indigo brown
(Chem.)
, a brown resinous substance found in crude indigo.
– Indigo copper
(Min.)
, covellite.
– Indigo green
, a green obtained from indigo.
– Indigo plant
(Bot.)
, a leguminous plant of several species (genus
– Indigofera
), from which indigo is prepared. The different varieties are natives of Asia, Africa, and America. Several species are cultivated, of which the most important are the Indigofera tinctoria
, or common indigo plant
, the Indigofera Anil
, a larger species, and the Indigofera disperma
. Indigo purple
, a purple obtained from indigo.
– Indigo red
, a dyestuff, isomeric with indigo blue, obtained from crude indigo as a dark brown amorphous powder.
– Indigo snake
(Zool.)
, the gopher snake.
– Indigo white
, a white crystalline powder obtained by reduction from indigo blue, and by oxidation easily changed back to it; – called also
– indigogen
. Indigo yellow
, a substance obtained from indigo.
Webster 1828 Edition
Indigo
IN'DIGO
,Noun.
Definition 2024
Indigo
indigo
indigo
English
Noun
indigo (countable and uncountable, plural indigos or indigoes)
- A purplish-blue colour
-
indigo colour: -
web indigo colour:
- 1907, Harold Edward Bindloss, chapter 6, in The Dust of Conflict:
- The night was considerably clearer than anybody on board her desired when the schooner Ventura headed for the land. It rose in places, black and sharp against the velvety indigo, over her dipping bow, though most of the low littoral was wrapped in obscurity.
-
- An indigo-colored dye obtained from certain plants (the indigo plant or woad), or a similar synthetic dye.
- An indigo plant, such as from species in genera Indigofera, Amorpha (false indigo), Baptisia (wild indigo), and Psorothamnus and Dalea (indigo bush).
Derived terms
terms derived from indigo
Related terms
Translations
colour
|
|
dye
Adjective
indigo
- Having a deep blue colour.
Translations
colour
|
See also
| Colors in English · colors, colours (layout · text) | ||||
|---|---|---|---|---|
| red | green | yellow | cream | white |
| crimson | magenta | teal | lime | pink |
| indigo | blue | orange | gray, grey | violet |
| black | purple | brown | azure, sky blue | cyan |
|
References
Dutch
Pronunciation
Noun
indigo n (plural indigo's)
- The colour indigo.
Adjective
indigo (invariable, comparative meer indigo, superlative meest indigo)
- indigo-coloured.
Inflection
| Inflection of indigo | ||||
|---|---|---|---|---|
| uninflected | indigo | |||
| inflected | indigo | |||
| comparative | — | |||
| positive | ||||
| predicative/adverbial | indigo | |||
| indefinite | m./f. sing. | indigo | ||
| n. sing. | indigo | |||
| plural | indigo | |||
| definite | indigo | |||
| partitive | indigo's | |||
See also
| Colors in Dutch · kleuren (layout · text) | ||||
|---|---|---|---|---|
| rood | groen | geel | roomwit | wit |
| karmijnrood | magenta | groenblauw/petrolblauw | groengeel/limoengroen | roze |
| indigo | blauw | oranje | grijs | violet |
| zwart | paars | bruin | azuurblauw | blauwgroen/cyaan |