poly·es·ter
ˈpä-lē-ˌe-stər 
ˌpä-lē-ˈe-
: 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
: characterized by inelegant or unsophisticated middle-class taste
polyester suburbs
polyester folks
Examples of polyester in a Sentence
Noun
The shirt is made of polyester.
The sheets are a cotton and polyester blend.
Recent Examples on the Web
Destinee Scott, Travel + Leisure, 25 Oct. 2025
Who can claim this jumble of junior-varsity field hockey teams, center-justified poetry, and polyester tux jackets as their intellectual property?
—Dan Piepenbring, Harpers Magazine, 24 Oct. 2025
Lindsey Vickers, USA TODAY, 30 Apr. 2020
Start with polyester thermal underwear for the base layer.
—Deb Acord, Popular Mechanics, 22 Sep. 2019
See All Example Sentences for polyester
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Noun
All In Motion Active Light High-Rise Wide-Leg Pants Made from a blend of recycled polyester and spandex, the high-rise pants are lightweight and stretchy, providing unrestricted movement needed for travel.
—Destinee Scott, Travel + Leisure, 25 Oct. 2025
Who can claim this jumble of junior-varsity field hockey teams, center-justified poetry, and polyester tux jackets as their intellectual property?
—Dan Piepenbring, Harpers Magazine, 24 Oct. 2025
Adjective
Get a cap and gown for a cool photo op
No graduation day is complete without a photo shoot in a tasseled cap and hot, sweaty, polyester robe, right?
—Lindsey Vickers, USA TODAY, 30 Apr. 2020
Start with polyester thermal underwear for the base layer.
—Deb Acord, Popular Mechanics, 22 Sep. 2019
See All Example Sentences for polyester
Cite this Entry
“Polyester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyester. Accessed 29 Oct. 2025.
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