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aftertreatment

[ af-ter-treet-muhnt, ahf- ]
/ ˈæf tərˌtrit mənt, ˈɑf- /
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noun
a chemical treatment to which a fabric is subjected immediately after being dyed, for increasing the fastness of the color.
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Origin of aftertreatment

First recorded in 1825–35; after + treatment
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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