Collagen - Definitions from Dictionary.com

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

col·la·gen

Audio Help [kol-uh-juh

n] Pronunciation Key

–noun Biochemistry.

any of a class of extracellular proteins abundant in higher animals, esp. 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: 1860–65; < Gk kólla glue + -gen

]

—Related forms

col·lag·e·nous

Audio Help [kuh-laj-uh-nuh

s] Pronunciation Key, adjective

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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Encyclopædia Britannica, Inc.
Collagen

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American Heritage Dictionary - Cite This Source - Share This

col·la·gen Audio Help (kŏl'ə-jən) Pronunciation Key
n. The fibrous protein constituent of bone, cartilage, tendon, and other connective tissue. It is converted into gelatin by boiling.

[Greek kolla, glue + -gen.]

col'la·gen'ic (-jěn'ĭk), col·lag'e·nous (kə-lāj'ə-nəs) adj.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
collagen

c.1865, from Fr. collagène, from Gk. kolla "glue."

WordNet - Cite This Source - Share This

collagen
noun
a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling

The American Heritage Science Dictionary - Cite This Source - Share This

collagen Audio Help (kŏl'ə-jən) Pronunciation Key
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.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Collagen

Col"la*gen\, n. [Gr. ko`lla glue + -gen.] (Physiol. Chem.) 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.

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