hydroxyproline

noun

hy·​droxy·​pro·​line hī-ˌdräk-sē-ˈprō-ˌlēn How to pronounce hydroxyproline (audio)
: an amino acid C5H9NO3 that occurs naturally as a constituent of collagen

Examples of hydroxyproline 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 gel mask does so with three types of collagen, working in tandem with a thoughtful blend of supportive ingredients like hydroxyproline, collagen amino acids, hyaluronic acid, peptides, and squalane for a well-rounded formula that not only firms, but hydrates, soothes, and plumps. — Kiana Murden, Vogue, 21 Mar. 2025 In the new study, researchers aimed to turn things around by targeting hydroxyproline — an amino acid present in mammalian collagen — that was drawn from a sample of the Lapedo child’s right radius. — Jack Knudson, Discover Magazine, 10 Mar. 2025

Word History

First Known Use

1905, in the meaning defined above

Time Traveler
The first known use of hydroxyproline was in 1905

Rhymes for hydroxyproline

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Browse Nearby Words

hydroxynaphthoic acid
hydroxyproline
hydroxyquinoline
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Cite this Entry

“Hydroxyproline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydroxyproline. Accessed 29 Mar. 2025.

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Medical Definition

hydroxyproline

noun
hy·​droxy·​pro·​line -ˈprō-ˌlēn How to pronounce hydroxyproline (audio)
: an amino acid C5H9NO3 that occurs naturally as a constituent of collagen

More from Merriam-Webster on hydroxyproline

Britannica.com: Encyclopedia article about hydroxyproline

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