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| indigo | |||
| indigoid dyestuff | |||
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| indigo; indigotin | |||
| anil (Indigofera, Indigofera anil, Indigofera suffruticosa); anil indigo plant (Indigofera, Indigofera anil, Indigofera suffruticosa); indigo plant (Indigofera, Indigofera anil, Indigofera suffruticosa); true indigo plant (Indigofera tinctoria) | |||
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| anil; indigo plant; anil indigo plant | |||
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| true indigo plant; West Indian indigo plant | |||
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indigo : 21 phrases in 6 subjects |
| Agriculture | 1 |
| Chemistry | 16 |
| Dyes | 1 |
| Medical | 1 |
| Mineralogy | 1 |
| Natural sciences | 1 |