noun thio·indigo \¦thī(ˌ)ō+\

Definition of thioindigo

  1. 1 :  a red vat dye C16H8O2S2 like indigo in chemical structure except for replacement of both imino groups by sulfur atoms

  2. 2 :  any of several vat dyes derived from or closely related to thioindigo

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Origin and Etymology of thioindigo

International Scientific Vocabulary thi- + indigo

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capable of being understood in two ways

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