noun fi·bro·in \ˈfī-brə-wən, ˈfi-, -brō-ən\

Definition of FIBROIN

:  an insoluble protein comprising the filaments of the raw silk fiber

Origin of FIBROIN

French fibroïne, from fibr- + -ine -in
First Known Use: 1878


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July 01, 2015
precarious Hear it
not certain, secure, or steady
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