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polyacrylic acid

[pol-ee-uh-kril-ik, pol-]
noun Chemistry.
  1. a polymer of acrylic acid used as a sizing agent in the manufacture of nylon and other synthetic textiles.
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Origin of polyacrylic acid

First recorded in 1925–30; poly- + acrylic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018