1
: a salt or ester of acetic acid
2
: cellulose acetate
also : something (such as a textile fiber) made from cellulose acetate
3
: a phonograph recording disk made of an acetate or coated with cellulose acetate

Examples of acetate in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The five debut styles for spring are characterized by acetate frames and lightweight metal constructions. — Katie Abel, Footwear News, 28 Sep. 2026 New Balance’s Function-forward designs use durable, high-quality materials such as leather and ethylene-vinyl acetate foam. — Bestreviews, Chicago Tribune, 23 Sep. 2026 Choose eco-friendly, water-repellent materials like PEVA (polyethylene vinyl acetate) or EVA (ethylene vinyl acetate) for a mold-resistant shower curtain. — Patricia Shannon, Southern Living, 23 Aug. 2026 This process yields short-chain fatty acids, such as acetate, butyrate, and propionate, which serve as an energy source for cells lining the colon, strengthen the intestinal barrier, regulate inflammation, and influence systemic metabolism. — Encyclopedia Britannica, 19 Aug. 2026 See All Example Sentences for acetate

Word History

Etymology

borrowed from French acétate, from (acide) acétique acetic acid + -ate, -ate entry 1

First Known Use

1788, in the meaning defined at sense 1

Time Traveler
The first known use of acetate was in 1788

Browse Nearby Words

Cite this Entry

“Acetate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acetate. Accessed 2 Oct. 2026.

Kids Definition

1
: a chemical compound formed by the reaction of acetic acid with another substance
2
: something made from acetate or from cellulose and acetate combined

Medical Definition

: a salt or ester of acetic acid

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