poly·​es·​ter | \ ˈpä-lē-ˌe-stər How to pronounce polyester (audio) , 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

Keep scrolling for more

Other Words from polyester


polyesterification \ ˌpä-​lē-​e-​ˌster-​ə-​fə-​ˈkā-​shən How to pronounce polyesterification (audio) \ 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

Fabric settings: synthetic, nylon, silk, polyester, blend, wool, linen/cotton Weight: 3 lbs. Sarah Bogdan, Good Housekeeping, "5 Best Cordless Irons to Buy in 2019, According to Cleaning Experts," 15 Feb. 2019 Because the dresses are polyester, they can be crushed up small only to blossom into fairy-tale proportions. Steff Yotka, Vogue, "The Making of Tomo Koizumi’s NYFW Debut," 9 Feb. 2019 Polyurethane and polyester were adopted among guitar manufacturers in the late 60s/ early 70s as a more durable solution to nitro. Henry Robertson, Popular Mechanics, "Can Guitar Paint Affect Your Tone?," 31 Dec. 2018 Despite denim’s rugged American ancestry, many jeans today are made with stretch — spandex, elastane, or polyester — and marketed as more comfortable than sweatpants. Linda Rodriguez Mcrobbie, BostonGlobe.com, "Don’t get too comfortable: America’s relentless pursuit of convenience and relaxation," 19 May 2018 Choose from real down or down alternative polyester, then select your firmness level: soft for stomach sleepers, medium for back sleepers, or firm for side sleepers. Lexie Sachs, Good Housekeeping, "The Best Cooling Pillows, According to Textile Experts," 20 Dec. 2018 Newell said of the pillows, which are allergen-free (they are made from a microfiber-polyester alternative to down). Kavita Daswani, latimes.com, "Better sleep requires a better routine, and perhaps an upgrade to your pillows and PJs," 31 May 2018 Wool and polyester may keep you warm, but can cause skin to become irritated and red. Talia Abbas, SELF, "11 Tips for How to Treat Eczema During the Winter," 7 Jan. 2019 According to Greenpeace, polyester is now used in about 60% of our clothes. Tabor Wordelman, Teen Vogue, "Your Yoga Pants Are Polluting the Water You Drink," 19 Dec. 2018

Recent Examples on the Web: Adjective

The soft, polyester hat can also be ordered in different colors: from classic ivory to a confetti sea green, a pretty lavender, or natural gray — just keep in mind that price varies with color choice. Shanon Maglente, Good Housekeeping, "This $10 Beanie Shows Off Your Ponytail and Keeps Your Head Warm," 1 Mar. 2019 Start with polyester thermal underwear for the base layer. Deb Acord, Popular Mechanics, "7 Tips to Survive Cold-Weather Camping," 14 Dec. 2015 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.

See More

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

Keep scrolling for more

Learn More about polyester

Share polyester

Statistics for polyester

Last Updated

9 Mar 2019

Look-up Popularity

Time Traveler for polyester

The first known use of polyester was in 1922

See more words from the same year

Keep scrolling for more

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 How to pronounce polyester (audio) \

Kids Definition of polyester

: a synthetic fiber used especially in clothing

Keep scrolling for more

More from Merriam-Webster on polyester

Rhyming Dictionary: Words that rhyme with polyester

Spanish Central: Translation of polyester

Nglish: Translation of polyester for Spanish Speakers

Britannica.com: Encyclopedia article about polyester

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).


to boil down or concentrate

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!