hyaluronic acid
noun
hy·al·uron·ic acid
ˌhī(-ə)l-yu̇-ˈrä-nik 
: 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
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Infused with hyaluronic acid, squalane, and natural moisturizing ingredients, this lightweight milky serum works to hydrate dry, flaky scalps—or in Ciarlo’s case, sunburned scalps.
—
Kiana Murden, Vogue, 15 July 2025
Each one is made with hyaluronic acid for hydration, vitamin C to brighten the complexion, and aloe vera to soothe the skin.
—People Deals Team, People.com, 10 July 2025
Ingredients like ceramides and hyaluronic acid can help calm irritation and restore moisture.
—Sonal Nain
alex Backus
cameron Schoppa, MSNBC Newsweek, 10 July 2025
There are some goodies in here, like hyaluronic acid and omega fatty acids.
—Boutayna Chokrane, Wired News, 24 June 2025
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Kiana Murden, Vogue, 15 July 2025
Each one is made with hyaluronic acid for hydration, vitamin C to brighten the complexion, and aloe vera to soothe the skin.
—People Deals Team, People.com, 10 July 2025
Ingredients like ceramides and hyaluronic acid can help calm irritation and restore moisture.
—Sonal Nain
alex Backus
cameron Schoppa, MSNBC Newsweek, 10 July 2025
There are some goodies in here, like hyaluronic acid and omega fatty acids.
—Boutayna Chokrane, Wired News, 24 June 2025
See All Example Sentences for hyaluronic acid
Cite this Entry
“Hyaluronic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyaluronic%20acid. Accessed 22 Jul. 2025.
Copy CitationMedical Definition
hyaluronic acid
noun
hy·al·uron·ic acid
ˌhīl-yu̇-ˌrän-ik-
ˌhī-əl-yu̇-
ˌhī-əl-yu̇-
: 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
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