from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An insoluble protein in the cuticle of arthropods that is hardened and darkened by cross-links with quinones and is often bound to chitin filaments.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry the crosslinked
proteincomponent of the cuticlesof insects
from The American Heritage® Dictionary of the English Language, 4th Edition
[sclero– + -tin (as in keratin or chitin).]
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