Definition of collagen
: 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
collagenousplay \kə-ˈla-jə-nəs\ adjective
Recent Examples of collagen from the Web
The antibodies also make matters worse by attaching to receptors on the macrophages, which in response spit out transforming growth factor β, an immune messenger that activates collagen-producing fibroblasts, leading to fibrosis of tissues.
This process works because the collagen in the parchment fluoresces a soft blue color under near-ultraviolet illumination.
Though research is ongoing into the exact causes of the disease, it is known that scleroderma involves an overproduction of collagen, according to the foundation.
Performed using a medical-grade, stainless steel roller covered with hundreds of tiny spikes, the tool creates a series of micro-injuries in effort to rebuild the skin collagen production along with elasticity.
Because of the little punctures from the needles, your skin is forced to repair itself, which increases collagen and elastin production, minimizes the look of pores, and smooths out skin.
Other more permanent fillers, such as collagen fillers, can be removed surgically or with steroid injections.
At Ma Maison de Beauté try the latest collagen-producing treatment for both face and body, aptly called the Venus Legacy.
Vitamin C is a common ingredient in all skin-care products because of its awesome ability to reduce discoloration, stimulate collagen production, minimize fine lines and wrinkles, and protect your skin against future sun damage.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'collagen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of collagen
Greek kolla + International Scientific Vocabulary -gen
First Known Use: circa 1865See Words from the same year
COLLAGEN Defined for English Language Learners
Definition of collagen for English Language Learners
: a substance that occurs naturally in the bodies of people and animals and is often put into creams and other products that are sold to make a person's skin smoother and less wrinkled
Medical Definition of collagen
: 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
Seen and Heard
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