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

Case in point: Our favorite base makeup is formulated with skin-loving, acne-fighting ingredients like salicylic acid, hyaluronic acid, anti-inflammatory ingredients (like lactobacillus ferment), and beyond. —Annie Blackman, Allure, 7 Sep. 2024

It’s infused with hyaluronic acid, collagen, and retinol, all combined into a lightweight serum that will increase the firmness and elasticity of your skin. —Kat Romero, Rolling Stone, 30 Aug. 2024

Low- and medium-molecular weight hyaluronic acid protects against humidity, to stop frizz in its tracks. —Lauren Murdoch-Smith, Vogue, 15 Aug. 2024

Formulated with peptides, ceramides, hyaluronic acid, and allantoin, this lightweight mineral SPF hydrates and smooths skin. —Danielle Sinay, Glamour, 13 Aug. 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