Definitions

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 protein component of the cuticles of insects

Etymologies

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

[sclero– + -tin (as in keratin or chitin).]

Examples

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