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

Unlike traditional lip plumpers that create an uncomfortable tingling sensation, this formula plumps with the nourishing power of hyaluronic acid. —Iman Balagam, Vogue, 5 Dec. 2024

Three different sizes of hyaluronic acid penetrate deep into the skin, leaving it looking plump, smooth, and super supple. —Claire Rutter, Rolling Stone, 5 Dec. 2024

This powerful, multifaceted treatment smooths fine lines, firms the delicate skin around your lips and locks in moisture with a blend of hyaluronic acid, peptides and squalane. —Emily Cegielski, Flow Space, 5 Dec. 2024

Editor's tip: Unlike heavier creams, hyaluronic acid is incredibly light yet holds many times its weight in water, delivering deep hydration without clogging pores. —Christa Joanna Lee, Allure, 3 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