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

Key Ingredients: Retinol, panthenol, hyaluronic acid, glycerin Size: 0.7 fl. oz. —Deanna Pai, Vogue, 6 Mar. 2025

Bentonite clay, hyaluronic acid Size: 2.7 oz Pros: Helps soften skin bumps Cons: Might be drying to some This mud mask has a blend of bentonite clay and hyaluronic acid to suck up blackheads, pimples and pollution all while leaving the skin hydrated and non-stripped. —Alanna Martine Kilkeary, Glamour, 3 Mar. 2025

It’s formulated with diamond powder that catches and reflects light, as well as hydrating ingredients such as hyaluronic acid and avocado, shea, and mango butters. —Hannah Malach, WWD, 2 Mar. 2025

The lightweight formula contains Japanese peony extract, niacinamide, ceramides, hyaluronic acid, vitamin C and peptides. —Celia Shatzman, Forbes, 26 Feb. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1934, in the meaning defined above

Rhymes for hyaluronic acid

• antacid
• placid

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