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Definition of: mordant
(môr′dənt) noun
1. Any substance, such as tannic acid or aluminum hydroxide, which, by combining with a dyestuff to form an insoluble compound (lake), serves to produce a fixed color in a textile fiber.
2. The corrosive used in etching.
—adjective
1. Biting; pungent; sarcastic.
2. Acting as a mordant.
—v.t. To treat or imbue with a mordant. [<OF]
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