Definition of fibroin in English:


Line breaks: fi|broin
Pronunciation: /ˈfʌɪbrəʊɪn


[mass noun]
A protein which is the chief constituent of silk.
More example sentences
  • Molecular elasticity is associated with a select number of polypeptides and proteins, such as titin, Lustrin A, silk fibroin, and spider silk dragline protein.
  • As water volume decreased and the concentration of fibroin increased, the proteins folded in on themselves, forming round structures called micelles.
  • The mechanisms are not well defined, but iron and tin will promote the photo-oxidation of the silk fibroin.


mid 19th century: from fibro- + -in1.

Definition of fibroin in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day rebuff
Pronunciation: rɪˈbʌf
reject (someone or something) in an abrupt manner…