Simple Definition of polyester

from our Learner's Dictionary

polyester

noun

ˌpɑːliˈɛstɚ How to pronounce polyester (audio)
: a material that is made from a chemical process and that is used for making many different products including fabrics
The shirt is made of polyester.
a polyester shirt
The sheets are a cotton and polyester blend.

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“Polyester.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/polyester. Accessed 19 Jun. 2026.

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