hyaluronic acid

noun

hy·​al·​uron·​ic acid ˌhī(-ə)l-yu̇-ˈrä-nik How to pronounce hyaluronic acid (audio)
: a viscous glycosaminoglycan chiefly of the matrix of tissues that occurs especially in the vitreous humor, umbilical cord, synovial fluid, and loose connective tissue and serves especially as a structural element and lubricant

Examples of hyaluronic acid 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.
Kérastase’s Densifique Bain Densité Shampoo can help, balancing a deep cleanse with density-boosting (and hydrating) ingredients, including hyaluronic acid, ceramides, and gluco-peptides, to plump the cuticle and reduce breakage from root-to-tip. — Madison San Miguel, Allure, 5 Sep. 2026 Modern-day formulas are often weightless and tout ingredients like hyaluronic acid and antioxidants to plump up the skin and keep it hydrated—while evening out tone and smoothing over textured spots. — Alanna Martine Kilkeary, Glamour, 4 Sep. 2026 Above is a popular formula in a desirable flavor, featuring a blend of five electrolytes, hyaluronic acid, and bioactive collagen peptides. — Stacia Datskovska, Footwear News, 2 Sep. 2026 Also formulated with hyaluronic acid, shea butter, collagen, peptides, and niacinamide, this anti-aging powerhouse remains true to its name thanks to a seemingly endless list of hydrating ingredients. — Jenny Berg, Vogue, 31 Aug. 2026 See All Example Sentences for hyaluronic acid

Word History

Etymology

International Scientific Vocabulary

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of hyaluronic acid was in 1934

Rhymes for hyaluronic acid

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Browse Nearby Words

hyalotekite
hyaluronic acid
hyaluronidase
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Cite this Entry

“Hyaluronic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyaluronic%20acid. Accessed 5 Sep. 2026.

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Medical Definition

hyaluronic acid

noun
hy·​al·​uron·​ic acid ˌhīl-yu̇-ˌrän-ik- How to pronounce hyaluronic acid (audio) ˌhī-əl-yu̇- How to pronounce hyaluronic acid (audio)
: a viscous glycosaminoglycan that occurs especially in the vitreous body, the umbilical cord, and synovial fluid and as a cementing substance in the subcutaneous tissue

More from Merriam-Webster on hyaluronic acid

Britannica.com: Encyclopedia article about hyaluronic acid

Last Updated: - Updated example sentences
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