Definition of collagen in English:

Share this entry


Pronunciation: /ˈkäləjən/


The main structural protein found in skin and other connective tissues, widely used in purified form for cosmetic surgical treatments: vitamin C plays a vital role in the formation of collagen [as modifier]: she was given a collagen injection to smooth out wrinkles in her forehead
More example sentences
  • Among these, collagen is the major structural protein and is the most abundant in the human body.
  • The protein collagen is responsible for the tough qualities of connective tissue.
  • Protein is crucial for the production of collagen and elastin, the protein fibres that keep skin supple and elastic


Mid 19th century: from French collagène, from Greek kolla 'glue' + French -gène (see -gen).

For editors and proofreaders

Syllabification: col·la·gen

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.