indigo
/ˈɪndɪgəʊ/noun
(pl. -os 或-oes)
1
- a tropical plant of the pea family, which was formerly widely cultivated as a source of dark blue dye木蓝属植物。
1.1
- Genus Indigofera, family Leguminosae: several species, in particular I. tinctoria.木蓝属, 豆科：数种, 尤指木蓝（拉丁名I. tinctoria）。
2
- mass noun the dark blue dye obtained from this plant靛蓝; 靛蓝染料。
2.1
- a colour between blue and violet in the spectrum靛蓝色：
as modifier he dived into the indigo water.他潜入深蓝色的水中。
词源
mid 16th cent.: from Portuguese índigo, via Latin from Greek indikon, from indikos 'Indian (dye) ' （see INDIC）.