fibroin

noun
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

Keep scrolling for more

Learn More about fibroin

Statistics for fibroin

Look-up Popularity

Time Traveler for fibroin

The first known use of fibroin was in 1878

See more words from the same year

More from Merriam-Webster on fibroin

Britannica.com: Encyclopedia article about fibroin

Comments on fibroin

What made you want to look up fibroin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by word of mouth

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!