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[pol-ee-es-ter, pol-ee-es-ter] /ˈpɒl iˌɛs tər, ˌpɒl iˈɛs tər/
Chemistry. a polymer in which the monomer units are linked together by the group –COO–, usually formed by polymerizing a polyhydric alcohol with a polybasic acid: used chiefly in the manufacture of resins, plastics, and textile fibers.
Also called poly. a fabric made from such textile fibers.
Origin of polyester
First recorded in 1925-30; poly- + ester
Related forms
[pol-ee-es-ter-uh-fi-key-shuh n] /ˌpɒl iˌɛs tər ə fɪˈkeɪ ʃən/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for polyester


any of a large class of synthetic materials that are polymers containing recurring -COO- groups: used as plastics, textile fibres, and adhesives
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for polyester

1929, formed from polymer + ester. Polyester fiber was discovered 1941.

Online Etymology Dictionary, © 2010 Douglas Harper
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polyester in Science
Any of various mostly synthetic polymers that are light, strong resins resistant to weather and corrosion. Polyesters are long chains of esters and are used to make fibers and plastics. They are thermosetting. Some polyesters, such as suberin, occur naturally.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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