(n.) The chemical basis of ordinary connective tissue, as of tendons or sinews and of bone. On being boiled in water it becomes gelatin or glue.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). collagen. Retrieved September 24, 2026, from http://smartdefine.org/collagen/definitions/1988948 |
| Chicago | Webster's. 2011. "collagen" http://smartdefine.org/collagen/definitions/1988948 (accessed September 24, 2026). |
| Harvard | Webster's 2011, collagen, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/collagen/definitions/1988948>. |
| MLA | Webster's. "collagen" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/collagen/definitions/1988948> |