Indigo :: Indigo (n.) A kind of deep blue, one of the seven prismatic colors..
Indigo :: Indigo (n.) A blue dyestuff obtained from several plants belonging to very different genera and orders; as, the woad, Isatis tinctoria, Indigofera tinctoria, I. Anil, Nereum tinctorium, etc. It is a dark blue earthy substance, tasteless and odorless, with a copper-violet luster when rubbed. Indigo does not exist in the plants as such, but is obtained by decomposition of the glycoside indican..
Indigo :: Indigo (a.) Having the color of, pertaining to, or derived from, indigo..
Indigofera :: Indigofera (n.) A genus of leguminous plants having many species, mostly in tropical countries, several of them yielding indigo, esp. Indigofera tinctoria, and I. Anil..
Indigogen :: Indigogen (n.) See Indigo white, under Indigo..