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Definition of "collagen" [col•la•gen]

  • The fibrous protein constituent of bone, cartilage, tendon, and other connective tissue. It is converted into gelatin by boiling. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "collagen" in a sentence
  • "Burd DAR, Longaker MT, Adzick NS, Harrison MR, Ehrlich HP: Fetal wound healing in a large animal model: The deposition of collagen is confirmed."
  • "The structure was grown using about 100,000 beads of the connective protein collagen, seeded with cells from a human liver cancer culture and tipped into a body-shaped mould."
  • "Although some people see results immediately, the results get better over a three to six month time period, as new collagen is formed and the skin tightens."