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poly·​es·​ter ˈpä-lē-ˌe-stər How to pronounce polyester (audio)
: 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
polyesterification noun


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: 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
This usually comes down to personal preference: For example, some more affordable comforters and duvet inserts have a polyester shell, which can be soft and durable but not as breathable as 100% cotton. Kathleen Felton, Better Homes & Gardens, 21 May 2024 The ultra-soft polyester and cotton blend material will keep you endlessly comfortable during longhaul flights, walking tours, and more, plus each piece can be styled together or on its own for enhanced versatility in your wardrobe. Merrell Readman, Travel + Leisure, 18 May 2024 See all Example Sentences for polyester 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'polyester.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History



poly- + ester


from the assumed popularity of clothing made from polyester fabric among middle-class consumers

First Known Use


1922, in the meaning defined above


1975, in the meaning defined above

Time Traveler
The first known use of polyester was in 1922

Dictionary Entries Near polyester

Cite this Entry

“Polyester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyester. Accessed 30 May. 2024.

Kids Definition


: any of a group of polymers that consist basically of repeated units of an ester and are used chiefly in making fibers or plastics
Last Updated: - Updated example sentences
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