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fibroin: Meaning and Definition of

fi•bro•in

Pronunciation: (fī'brō-in), [key]
— n. Biochem.
  1. an indigestible protein that is a principal component of spider webs and silk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
fibroid fibrolite
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