indigotin indigotic • indigotindisulphonic · · · Info · Definitions · Synonyms · Characters · · indigotin · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a blue dye obtained from plants or made synthetically. Synonyms: anil, indigo. · · Noun Definition 1 Synonyms · · · anil · · Synonym 1 indigo · · Synonym 2 Characters · · d latin small letter d U+0064 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074