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

Recent Examples on the Web

The eye masks are formulated with ingredients like hyaluronic acid and green tea extract to help moisturize and brighten under eyes. —Isabel Garcia, People.com, 18 Dec. 2024

Formulated with hyaluronic acid and nourishing botanical ingredients like evening primrose oil, this gloss-like oil adds just the right amount of plumpness and color to your lips. —Alanna Martine Kilkeary, Glamour, 17 Dec. 2024

Formulated with blue agave extract, hyaluronic acid, and niacinamide, this cult-favorite primer is a hydrating salve to cling to makeup. —Kiana Murden, Vogue, 16 Dec. 2024

The blend of seaweed and hyaluronic acid leaves your skin plump and bouncy in no time. —Jessica Copeland, Rolling Stone, 16 Dec. 2024

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- 

: 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