Is “Fibroin” a Scrabble word?
Yes
FIBROIN
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Fibroin
noun
1.A tough elastic protein that is the main component of silk and of spider's webs