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[pol-ee-uh-kril-uh-mahyd, -mid, -ak-ruh-lam-ahyd, -id] /ˌpɒl i əˈkrɪl əˌmaɪd, -mɪd, -ˌæk rəˈlæm aɪd, -ɪd/
noun, Chemistry.
a white, solid, water-soluble polymer of acrylamide, used in secondary oil recovery, as a thickening agent, a flocculant, and an absorbent, and to separate macromolecules of different molecular weights.
Origin of polyacrylamide
1940-45; poly- + acrylamide Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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polyacrylamide in Science
A white, water-soluble polymer containing repeating units of acrylamide (C3H5NO)and related to acrylic acid. Polyacrylamide is used in food packaging, adhesives, coatings, and paper manufacturing. It is also used to reduce soil erosion and as a gel for electrophoresis in the laboratory analysis of protein and DNA structures.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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