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Definition of polyester

polyester

/ˌpɑːliˈɛstɚ/
pol · y · es · ter
Plural:polyesters
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polyester Lexical Profile

polyester Game Scores & Validity

• noun

1

A durable, wrinkle-resistant synthetic fiber or fabric made from spun polyester resin, widely used in clothing and upholstery.

Example

"The athletic shirt is made from a blend of cotton and breathable polyester."

2

Any of a large class of synthetic polymers containing ester functional groups in their main molecular chain, used to manufacture plastics, films, and resins.

Example

"Chemists synthesized a biodegradable polyester for use in eco-friendly food packaging."

• adjective

1

Made of or containing a synthetic polyester fabric or resin.

Example

"He packed a lightweight polyester jacket that would dry quickly in the mountain rain."

Synonyms
View all synonyms for polyester

• Rhymes for polyester

• Nearby Words

polyamory
polyanthus
polycotton
polyester
polygala
polygamist
polygamous

Word Origin & Etymology

Coined in the early 20th century from the chemical prefix poly- ('many', from Ancient Greek polys) and ester, indicating a polymer composed of repeating ester functional groups.

Cite this Entry

Wordmom. (2026). Definition of Polyester. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/polyester
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