noun
collagen
KO-luhd-zhuhn
noun
1
A tough, fibrous protein that gives structure to skin, bones, tendons, and other connective tissue in animals.
"Collagen levels in the skin naturally decline with age."
"The supplement claims to boost collagen production."
How to Use Collagen
Learner’s notesIn plain EnglishA key structural protein in skin, joints, and bones, often marketed in supplements and skincare.
Common pairings
collagen production
collagen supplement
Word Forms
collagens plural
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_____ levels in the skin naturally decline with age.
Etymology
From French collagène, built from Greek kolla ("glue") and -genes ("producing") — it's the substance animal-based glue was traditionally made from.