WordReference Random House Unabridged Dictionary of American English © 2026
vat′ dye′, [Chem.]
  1. Chemistryany of the class of insoluble dyes impregnated into textile fibers by reduction into soluble leuco bases that regenerate the insoluble dye on oxidation.
  • 1900–05

Collins Concise English Dictionary © HarperCollins Publishers::
vat dye n
  1. a dye, such as indigo, that is applied by first reducing it to its leuco base, which is soluble in alkali, and then regenerating the insoluble dye by oxidation in the fibres of the material
ˈvat-ˌdyed adj
'vat dye' also found in these entries (note: many are not synonyms or translations):
indigo - vat

Forum discussions with the word(s) "vat dye" in the title:


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