poly·es·ter | \ˈpä-lē-ˌe-stər, ˌpä-lē-ˈe-\

Definition of polyester 

(Entry 1 of 2)

: any of a group of polymers that consist basically of repeated units of an ester and are used especially in making fibers or plastics also : a product (such as a fiber or fabric) composed of polyester



Definition of polyester (Entry 2 of 2)

: characterized by inelegant or unsophisticated middle-class taste polyester suburbs polyester folks

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Other Words from polyester


polyesterification \ˌpä-lē-e-ˌster-ə-fə-ˈkā-shən \ noun

Examples of polyester in a Sentence


The shirt is made of polyester. The sheets are a cotton and polyester blend.

Recent Examples on the Web: Noun

At 25 pounds, of which 10 pounds is a slab of lead, and also formed of carbon fiber and polyester, the board is heavy, its forward third flexible, with a narrow PVC spine for shock absorption, and two parallel foot straps. Paul Theroux, Smithsonian, "The Epic Quest to Ride the World’s Biggest Wave," 27 June 2018 The big contributors were packaging materials like polyethylene and polypropylene, paints, nylon, polyester, and cellulose acetate, primarily used in the manufacture of cigarette filters. David Grossman, Popular Mechanics, "Researchers Discover Record Levels of Plastic in the Arctic Ocean," 24 Apr. 2018 America, for example, charges tariffs of 27.3% or more on a variety of textiles, including polyester suits and T-shirts. The Economist, "Donald Trump insists on trade reciprocity. But what kind?," 12 July 2018 Thanks to ultralight nylon and polyester fabrication, and its aluminum poles, the tent weighs less than 3 pounds all in. Clint Carter, WSJ, "Why Camping Alone Can Make You a Mental Winner," 26 June 2018 According to the City of Cincinnati, recycled items get turned into polyester suits, park furniture, clothing, glass containers, newspapers, animal bedding, food cans, rain gutters and window frames, among other things. Madeline Mitchell, Cincinnati.com, "What you can and can't recycle, according to the experts at Rumpke," 12 June 2018 Your polyester shirt may soon come with a warning label. The Washington Post, NOLA.com, "Your polyester shirt may be polluting our water system," 6 June 2018 Perhaps never before has so much polyester gathered in one place as fans in their team’s shirt went on a mission to take selfies with counterparts from all other 31 participating nations. SI.com, "90min World Cup Fan Diaries: From Russia With Love," 9 July 2018 The bed had a polyester Superman comforter and a cocaine mirror on the headboard shelf. Stephen Metcalf, The Atlantic, "Jean-Michel Basquiat Is Still an Enigma," 24 June 2018

Recent Examples on the Web: Adjective

The small, polyester bag made its way from Earth to the moon and back, later languishing for years in a museum basement and a future convict’s garage. Scott Canon, kansascity, "She paid less than $1,000 for a moon dust bag and it’s now worth nearly $2 million," 20 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polyester.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of polyester


1922, in the meaning defined above


1975, in the meaning defined above

History and Etymology for polyester


International Scientific Vocabulary

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Statistics for polyester

Last Updated

24 Aug 2018

Look-up Popularity

Time Traveler for polyester

The first known use of polyester was in 1922

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More Definitions for polyester



English Language Learners Definition of polyester

: a material that is made from a chemical process and that is used for making many different products including fabrics


poly·es·ter | \ˈpä-lē-ˌe-stər \

Kids Definition of polyester

: a synthetic fiber used especially in clothing

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Comments on polyester

What made you want to look up polyester? Please tell us where you read or heard it (including the quote, if possible).


one that holds something together

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