collagen

noun

col·​la·​gen ˈkä-lə-jən How to pronounce collagen (audio)
: any of a group of fibrous proteins that occur in vertebrates as the chief constituent of connective tissue fibrils and in bones and yield gelatin and glue upon boiling with water
collagenous adjective

Examples of collagen 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.
Try Microneedling Microneedling is the process of puncturing the skin with tiny needles to stimulate collagen production. Carrie Madormo, Rn, Mph, Verywell Health, 30 Apr. 2025 Neutrogena Healthy Skin Anti-Aging Perfector Moisturizer $13 $9 at Amazon The moisturizer is formulated with retinol, a powerful ingredient that works to increase collagen production to plump up fine lines and wrinkles, even skin tone, decrease hyper pigmentation, and much more. Alicia Geigel, Southern Living, 25 Apr. 2025 The Laser Pro uses near-infrared cold laser technology to boost collagen production to address wrinkles, cellulite, redness, scarring, hyperpigmentation, and post-surgical recovery. Julian Chokkattu, Wired News, 19 Apr. 2025 The importance of daylight The infrared light found in daylight can modulate inflammation, stimulate collagen production, prevent neurodegeneration, and even optimize mitochondria, which produce energy inside our cells. Ana Morales, Vogue, 18 Apr. 2025 See All Example Sentences for collagen

Word History

Etymology

Greek kolla + International Scientific Vocabulary -gen

First Known Use

circa 1865, in the meaning defined above

Time Traveler
The first known use of collagen was circa 1865

Browse Nearby Words

Cite this Entry

“Collagen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/collagen. Accessed 4 May. 2025.

Kids Definition

collagen

noun
col·​la·​gen ˈkäl-ə-jən How to pronounce collagen (audio)
: a protein that occurs in the form of fibers, does not dissolve, is found in connective tissue, and forms glue and gelatin upon boiling with water

Medical Definition

collagen

noun
col·​la·​gen ˈkäl-ə-jən How to pronounce collagen (audio)
: an insoluble fibrous protein of vertebrates that is the chief constituent of the fibrils of connective tissue (as in skin and tendons) and of the organic substance of bones and yields gelatin and glue on prolonged heating with water
collagenic adjective
collagenous adjective

More from Merriam-Webster on collagen

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!