elastin

noun

elas·​tin i-ˈla-stən How to pronounce elastin (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Smoking accelerates the breakdown of collagen and elastin, which are essential for skin firmness and elasticity. Lauren Jarvis-Gibson, Miami Herald, 24 Apr. 2026 The process activates fibroblasts, or the skin cells responsible for collagen and elastin production, skin structure, and wound healing. Erica Sweeney, Time, 9 Apr. 2026 The formula is packed with hydrating niacinamide, moisture-retaining hydrolyzed collagen, plumping squalane, and softening hydrolyzed elastin. Annie Blackman, InStyle, 8 Apr. 2026 After our twenties, the scalp’s root system can begin to weaken as elastin production slows, leading to thinner, weaker hair that’s more prone to shedding. ABC News, 30 Mar. 2026 See All Example Sentences for elastin

Word History

Etymology

International Scientific Vocabulary, from New Latin elasticus

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of elastin was in 1875

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Cite this Entry

“Elastin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/elastin. Accessed 21 May. 2026.

Kids Definition

elastin

noun
elas·​tin i-ˈlas-tən How to pronounce elastin (audio)
: 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 How to pronounce elastin (audio)
: a protein that is similar to collagen and is the chief constituent of elastic fibers

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