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

Definition of fibroin

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

Examples of fibroin in a Sentence

Recent Examples on the Web

The team combined a protein found in spider silk, called fibroin, with a form of plastic and a type of calcium that’s found in our bones. Angela Chen, The Verge, "How scientists are engineering silk to save our bodies," 4 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fibroin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fibroin

1878, in the meaning defined above

History and Etymology for fibroin

French fibroïne, from fibr- + -ine -in

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The first known use of fibroin was in 1878

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esteemed in general opinion

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