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单词 indigo blue
释义

indigo blue


indigo blue

n, adj (indigo-blue when prenominal) (Colours) the full name for indigo1, indigo3

in′digo blue′


n. 1. indigo (def. 4). 2. Also called indigo, indigotin. a dark blue, water-insoluble, crystalline powder, C16H10N2O2, the coloring principle of the dye indigo. [1705–15] in′di•go-blue′, adj.
Translations

indigo blue


indigo blue

[′in·də·gō ′blü] (organic chemistry) C16H10O2N2 A component of the dye indigo, crystallizing as dark-blue rhomboids that break down at 30°C, that are soluble in hot aniline and hot chloroform, and that are also made synthetically; used as a reagent and a dye. Also known as indigo.
MedicalSeeindigo
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