[in-di-goh] 
noun, plural -gos, -goes, adjective | 1. | a blue dye obtained from various plants, esp. of the genus Indigofera, or manufactured synthetically. |
| 2. | indigo blue (def. 2). |
| 3. | any of numerous hairy plants belonging to the genus Indigofera, of the legume family, having pinnate leaves and clusters of usually red or purple flowers. |
| 4. | a color ranging from a deep violet blue to a dark, grayish blue. |
| 5. | Also called indigo-blue, indigotic. of the color indigo. |
| 1. | indigo (def. 4). |
| 2. | Also called indigo, indigotin. a dark-blue, water-insoluble, crystalline powder, C16H10N2O2, having a bronzelike luster, the essential coloring principle of which is contained along with other substances in the dye indigo and which can be produced synthetically. |
| in·di·go (ĭn'dĭ-gō') n. pl. in·di·gos or in·di·goes
[Spanish índigo and Dutch indigo (from Portuguese endego), both from Latin indicum, from Greek Indikon (pharmakon), Indian (dye), neuter of Indikos, of India, from India, India, from Indos, the Indus River, from Old Persian Hinduš, Sind; see Hindi.] in'di·go' adj. |