Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun One of several classes of sulfated glycosaminoglycans that are a major constituent of various connective tissues, especially blood vessels, bone, and cartilage, used as an over-the-counter dietary supplement alone or in combination with glucosamine for joint pain in arthritis.

from The Century Dictionary.

  • noun An organic substance, (C18H27NO14), found in cartilage, in combination with sulphuric acid, as, chondroitin-sulphuric acid. On decomposition it gives rise to acetic acid and chondrosin.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry Any of a range of mucopolysaccharides, derived from galactosamine and glucuronic acid, that occur in cartilage and bone.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From chondroitic acid, an acid occurring in cartilage.]

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