elastin

noun

elas·​tin i-ˈla-stən 

: a protein that is similar to collagen and is the chief constituent of elastic fibers

Examples of elastin in a Sentence

Recent Examples on the Web

Since collagen and elastin are key to keeping skin looking smooth and bouncy, supporting their production—especially as our bodies start producing less of them over time—becomes increasingly important. — Sheryl George, Allure, 5 Oct. 2026

Fibroblasts are the cells in your skin that make collagen and elastin. — Leslie Baumann, Miami Herald, 1 Oct. 2026

Yes, that’s twice as many treatment options as the previous Series 2 mask—which means this pick is clinically proven to diminish the appearance of crepiness by stimulating collagen and elastin, as well as pigmentation concerns. — Jenny Berg, Vogue, 28 Sep. 2026

White tea extracts may also help protect collagen and elastin, which help keep your skin firm and flexible. — Brandi Jones, HEALTH, 24 Sep. 2026

Word History

Etymology

International Scientific Vocabulary, from New Latin elasticus

First Known Use

1875, in the meaning defined above

Rhymes for elastin

• thromboplastin

Kids Definition

elastin

noun

elas·​tin i-ˈlas-tən 

: a protein that is similar to collagen and helps make up the elastic fibers of connective tissue

Medical Definition

elastin

noun

elas·​tin i-ˈlas-tən 

: a protein that is similar to collagen and is the chief constituent of elastic fibers