: any of a class of often fragrant organic compounds that can be represented by the formula RCOOR′ and that are usually formed by the reaction between an acid and an alcohol with elimination of water
Examples of ester in a Sentence
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Key Ingredients: Peptides, alpha lipoic acid, vitamin B3, vitamin C ester, SPF 25
How to Apply: Use the cream as part of a daily, morning-skincare regime.
—
Kiana Murden, Vogue, 20 Jan. 2025
The topical retinoids most commonly used in skin care are retinoic acid, retinol, retinyl esters, and retinaldehyde.
—Sarah Han, Allure, 7 Jan. 2025
Shades: 30 Key ingredients: Mica, glycerin, sodium hyaluronate, titanium dioxide (SPF), silica, orange peel oil, jojoba esters, vitamin E
Size: 1 fl oz.
—Kiana Murden, Vogue, 10 Jan. 2025
It’s also got glycerin and jojoba esters to keep skin hydrated.
—Venus Wong, refinery29.com, 20 Dec. 2024
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Kiana Murden, Vogue, 20 Jan. 2025
The topical retinoids most commonly used in skin care are retinoic acid, retinol, retinyl esters, and retinaldehyde.
—Sarah Han, Allure, 7 Jan. 2025
Shades: 30 Key ingredients: Mica, glycerin, sodium hyaluronate, titanium dioxide (SPF), silica, orange peel oil, jojoba esters, vitamin E
Size: 1 fl oz.
—Kiana Murden, Vogue, 10 Jan. 2025
It’s also got glycerin and jojoba esters to keep skin hydrated.
—Venus Wong, refinery29.com, 20 Dec. 2024
See all Example Sentences for ester
Dictionary Entries Near ester
Cite this Entry
“Ester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ester. Accessed 21 Feb. 2025.
Copy CitationKids Definition
ester
noun
es·ter
ˈes-tər 
: an organic compound formed by the reaction between an acid and an alcohol
Medical Definition
ester
noun
es·ter
ˈes-tər
: any of a class of often fragrant compounds that can be represented by the formula RCOOR′ and that are usually formed by the reaction between an acid and an alcohol usually with elimination of water
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