scle·ro·pro·tein (sklîr′ō-prōtēn′, -tē-ĭn)
Any of a class of fibrous, generally insoluble proteins, such as collagen, that form strong filaments and are the chief constituents of connective tissue. Also called albuminoid.
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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