from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A dye, such as indigo, that produces a fast color by impregnating fiber with a reduced soluble form that is then oxidized to an insoluble form.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a type of dye, many based on indigo, in which a soluble form is used to impregnate a fibre or fabric and is then converted to an insoluble form
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton
Sorry, no etymologies found.