[ kol-uh-juh n ]
/ ˈkɒl ə dʒən /

noun Biochemistry.

any of a class of extracellular proteins abundant in higher animals, especially in the skin, bone, cartilage, tendon, and teeth, forming strong insoluble fibers and serving as connective tissue between cells, yielding gelatin when denatured by boiling.

Origin of collagen

1860–65; < Greek kólla glue + -gen

Related forms

col·lag·e·nous [kuh-laj-uh-nuh s] /kəˈlædʒ ə nəs/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for collagenous

  • The only unsatisfactory result was with collagenous foods, which plainly showed the need of a preliminary acid digestion.

    On Digestive Proteolysis|R. H. Chittenden

British Dictionary definitions for collagenous


/ (ˈkɒlədʒən) /


a fibrous scleroprotein of connective tissue and bones that is rich in glycine and proline and yields gelatine on boiling

Derived Forms

collagenic (ˌkɒləˈdʒɛnɪk) or collagenous (kəˈlædʒənəs), adjective

Word Origin for collagen

C19: from Greek kolla glue + -gen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for collagenous (1 of 2)


[ kə-lăjə-nəs ]


Producing or containing collagen.

Medicine definitions for collagenous (2 of 2)


[ kŏlə-jən ]


The fibrous protein constituent of bone, cartilage, tendon, and other connective tissue that converts into gelatin by boiling.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for collagenous


[ kŏlə-jən ]

Any of various tough, fibrous proteins found in bone, cartilage, skin, and other connective tissue. Collagens have great tensile strength, and provide these body structures with the ability to withstand forces that stretch them. Collagens consist of three polypeptide chains arranged in a triple helix, and are bundled together in fibers. When boiled in water, collagen is converted into gelatin.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.