vat dye
noun
any of the class of insoluble dyes impregnated into textile fibers by reduction into soluble leuco bases that regenerate the insoluble dye on oxidation.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The time had come at last to deal with Aneurin Bevan, the vat-dyed black sheep, the unregenerate guerrilla of British Socialism.
From Time Magazine Archive
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