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
Example Sentences
Recent Examples on the Web This luxe body cream includes hyaluronic acid to both soften and plump the skin, while its Bio-Renewal and Bio-Firming proteins help tighten and even skin tone. 
Jamie Wilson, Harper's BAZAAR, 1 Sep. 2022 The serum contains a few ingredients that are already in my skin-care regimen: hydrating hyaluronic acid, brightening niacinamide, and soothing rosewater. Jennifer Hussein, Allure, 17 Aug. 2022 Yet Vital Proteins, which also contains hyaluronic acid and vitamin C, dissolves seamlessly in everything from cold tap water to hot morning coffee, adding no discernible texture and almost no taste. Maggie Lange, Bon Appétit, 22 July 2022 In addition to earning top scores with our testers, the lotion also received bonus points from our derms for containing hyaluronic acid. SELF, 19 July 2022 To be clear: Botox reduces the appearance of wrinkles by relaxing muscles in your face, while filler uses hyaluronic acid to add volume in at least nine different spots on your face—not just your lips. Leah Bourne, Glamour, 11 July 2022 This foundation uses hyaluronic acid to deeply hydrate the skin. ELLE, 28 June 2022 Many people are using a pen to inject hyaluronic acid into their lips for a DIY lip plump. Jenna Ryu, USA TODAY, 10 June 2022 This cream uses hyaluronic acid and ceramides, providing instant relief and protection. The Salt Lake Tribune, 8 June 2022 See More
Jamie Wilson, Harper's BAZAAR, 1 Sep. 2022 The serum contains a few ingredients that are already in my skin-care regimen: hydrating hyaluronic acid, brightening niacinamide, and soothing rosewater. Jennifer Hussein, Allure, 17 Aug. 2022 Yet Vital Proteins, which also contains hyaluronic acid and vitamin C, dissolves seamlessly in everything from cold tap water to hot morning coffee, adding no discernible texture and almost no taste. Maggie Lange, Bon Appétit, 22 July 2022 In addition to earning top scores with our testers, the lotion also received bonus points from our derms for containing hyaluronic acid. SELF, 19 July 2022 To be clear: Botox reduces the appearance of wrinkles by relaxing muscles in your face, while filler uses hyaluronic acid to add volume in at least nine different spots on your face—not just your lips. Leah Bourne, Glamour, 11 July 2022 This foundation uses hyaluronic acid to deeply hydrate the skin. ELLE, 28 June 2022 Many people are using a pen to inject hyaluronic acid into their lips for a DIY lip plump. Jenna Ryu, USA TODAY, 10 June 2022 This cream uses hyaluronic acid and ceramides, providing instant relief and protection. The Salt Lake Tribune, 8 June 2022 See More Word History
Etymology
International Scientific Vocabulary
First Known Use
1934, in the meaning defined above
Medical 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