gray sour

noun

Definition of gray sour

1 : treatment (as of cotton) with dilute hydrochloric or sulfuric acid after scouring and before bleaching
2 : the bath or solution used in the gray sour

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Cite this Entry

“Gray sour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gray%20sour. Accessed 20 Jan. 2022.

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