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polyvinyl butyral

noun, Chemistry.
1.
a white, water-insoluble, polyvinyl acetal made with butyraldehyde, used chiefly as an interlayer in the manufacture of safety glass.
Origin of polyvinyl butyral
1940-1945
First recorded in 1940-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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