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Dictionary

pol•y•foam

Pronunciation: (pol'ē-fōm"), [key]
—n.
a rigid, semirigid, or rubbery foam composed of minute bubbles of air or carbon dioxide embedded in a polymer matrix, often polyurethane: used in mattresses, padding, insulation, etc.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

polyethylene glycol

polyfunctional

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