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indigo
in·di·go I0107300 (ĭn′dĭ-gō′)n. pl. in·di·gos or in·di·goes 1. a. Any of various shrubs or herbs of the genus Indigofera in the pea family, having pinnately compound leaves and usually red or purple flowers in axillary racemes.b. A dark blue crystalline compound, C16H10N2O2, that is obtained from these plants or produced synthetically and is widely used as a textile dye. Also called indigotin.2. Any of several related plants, especially those of the genera Amorpha and Baptisia.3. The hue of that portion of the visible spectrum lying between blue and violet, evoked in the human observer by radiant energy with wavelengths of approximately 420 to 450 nanometers; a dark blue to grayish purple blue.
[Spanish índigo and Dutch indigo (from Portuguese endego), both from Latin indicum, from Greek Indikon (pharmakon), Indian (dye), neuter of Indikos, of India, from India, India, from Indos, the Indus River, from Old Persian Hinduš, Sind; see Hindi.]
in′di·go′ adj.indigo (ˈɪndɪˌɡəʊ) n, pl -gos or -goes1. (Dyeing) Also called: indigotin a blue vat dye originally obtained from plants but now made synthetically2. (Plants) any of various tropical plants of the leguminous genus Indigofera, such as the anil, that yield this dye. Compare wild indigo3. (Colours) a. any of a group of colours that have the same blue-violet hue; a spectral colourb. (as adjective): an indigo carpet. [C16: from Spanish indico, via Latin from Greek Indikos of India] indigotic adjin•di•go (ˈɪn dɪˌgoʊ)
n., pl. -gos, -goes,
adj. n. 1. a blue dye, C16H10N2O2, obtained from various plants, esp. of the genus Indigofera, or manufactured synthetically. 2. indigo blue (def. 2). 3. any hairy plant of the genus Indigofera, of the legume family, having clusters of usu. red or purple flowers. 4. a color ranging from a deep violet blue to a dark grayish blue. adj. 5. of the color indigo. [1545–55; < Sp or Portuguese, índigo < Latin indicum < Greek indikón Indic] Thesaurus| Noun | 1. |  indigo - a blue dye obtained from plants or made syntheticallyanil, indigotindye, dyestuff - a usually soluble substance for staining or coloring e.g. fabrics or hair | | 2. |  indigo - deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dyeindigo plant, Indigofera tinctoriagenus Indigofera, Indigofera - genus of tropical herbs and shrubs having odd-pinnate leaves and spurred flowers in long racemes or spikesIndigofera anil, Indigofera suffruticosa, anil - shrub of West Indies and South America that is a source of indigo dyebush, shrub - a low woody perennial plant usually having several major stems | | 3. | indigo - a blue-violet colorreddish blue, violet - a variable color that lies beyond blue in the spectrum | | Adj. | 1. | indigo - having a color between blue and violet; "indigo flowers"colored, coloured, colorful - having color or a certain color; sometimes used in combination; "colored crepe paper"; "the film was in color"; "amber-colored heads of grain" |
TranslationsIdiomsSeegreen indigoIndigo
indigo [Span.; from Lat.,=Indian], important blue dyestuff used in printing inks and for vat dyeing of cotton (see dyedye,
any substance, natural or synthetic, used to color various materials, especially textiles, leather, and food. Natural dyes are so called because they are obtained from plants (e.g., alizarin, catechu, indigo, and logwood), from animals (e.g.
..... Click the link for more information. ). It was anciently produced in India and was known in Egypt, probably c.1600 B.C.; mummies of the XVIII dynasty have been discovered wrapped in indigo-dyed cloth. Indigo is obtained from leguminous plants of the genus Indigofera, chiefly from the Asian species Indigofera tinctoria, but also from several other species. The plants contain a colorless, soluble glucoside called indican. When the macerated plants are allowed to ferment in vats of water the colorless form of indigo is liberated; stirring of the liquid causes oxidation of the colorless material to form a blue sediment. The natural indigo gives a strong blue color of great permanence. Use of the natural dye greatly decreased after the synthesis of indigo was accomplished. Adolf von Baeyer was the first to synthesize it, but others developed the methods used for its commercial production from anilineaniline
, C6H5NH2, colorless, oily, basic liquid organic compound; chemically, a primary aromatic amine whose molecule is formed by replacing one hydrogen atom of a benzene molecule with an amino group.
..... Click the link for more information. and chloroacetic acid.Indigo plants containing the glycoside indican, the source of blue indigo dye. Only a few indigo plants contain a sufficient quantity of indican for practical use. The most important indigo plant is Indigofera tinctoria, which is native to southern Asia and was once widely cultivated. After the synthesis of indigo, the significance of this and other indigo plants decreased sharply. In the USSR the species Isatis tinctoria and Polygonum tinctoria are occasionally cultivated
Indigo a dark blue crystalline substance; its structural formula is Its melting point is 390°-392°C (with decomposition). It is insoluble in water and alcohol and slightly soluble in other organic solvents. 
Indigo, which has been known since remote antiquity, is a dye obtained from indigo plants (for example, Indigofera tinctoria); it is extensively used for vat dyeing cotton and silk blue. The principal method of obtaining indigo is by reacting aniline with chloroacetic acid to give phenylglycine, which is then fused with alkali to give indoxyl, which in turn is oxidized to indigo by the oxygen in the air. Reduction of indigo gives the leuco compound indigo white, whose sodium salt of sulfuric acid ester is called indigosol. Owing to the inadequate durability of indigo, it has been replaced by other vat dyes. The determination of the structure of indigo and development of methods of synthesizing it at the end of the 19th century was the start of the development of the manufacture of indigoid dyes. IU. E. GERASIMENKO indigo[′in·də·gō] (organic chemistry) A blue dye extracted from species of the Indigofera bush. indigo blue indigo1. any of various tropical plants of the leguminous genus Indigofera, such as the anil, that yield this dye 2. a. any of a group of colours that have the same blue-violet hue; a spectral colour b. (as adjective): an indigo carpet Indigo(1) An earlier family of desktop graphics computers from SGI. The low end were the Indy machines, which included their own digital video camera. The high end included a variety of Indigo workstations, with models specialized for graphics functions such as accelerated texture mapping and image processing. See SGI.
(2) The code name of the messaging system introduced in Windows Vista. See Windows Communication Foundation.indigo
in·di·go (in'di-gō), [C.I. 73000] A blue dyestuff obtained from Indigofera tinctoria, and other species of Indigofera (family Leguminosae); also made synthetically. Synonym(s): indigo blue, indigotin [L. indicum, fr. G. indikon, indigo, ntr. of Indikos, Indian] A colour which, in the pseudoscientific doctrine of colour therapy, is linked to the paranormal and said to stimulate the intellect, authority and inner calmness. It is said to purify the blood and treat diseases of the ear, nose, eyes, and sinuses, varicose veins, and nervous system, boils and ulcers, and skin disease. Too much indigo allegedly triggers headaches and somnolenceINDIGO
| Acronym | Definition |
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| INDIGO➣Integrating Distributed Data Infrastructures for Global Exploitation (scientific computing platform) | | INDIGO➣Indiana Networking for Documents and Information of Government Organizations | | INDIGO➣International Distribution Group GmbH | | INDIGO➣Indian Ocean Geochemistry (project) |
indigoenUS
Related to indigo: indigo plant, Indigo children, Indigo dyeSynonyms for indigonoun a blue dye obtained from plants or made syntheticallySynonymsRelated Wordsnoun deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowersSynonyms- indigo plant
- Indigofera tinctoria
Related Words- genus Indigofera
- Indigofera
- Indigofera anil
- Indigofera suffruticosa
- anil
- bush
- shrub
noun a blue-violet colorRelated Wordsadj having a color between blue and violetRelated Words |