Enter a clue or pattern or both:
The Clue
Fibrous protein (7 letter answer)
The Answer
KERATIN
Tags
Notes
The answer KERATIN is so rare that it appears less than once every 2500 puzzles.
Related Clues
A fibrous protein
Nail or horn base
Protein in hair and nails
Definition
KERATIN as a noun:
1. (keratin, ceratin) = a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair feathers nails and hooves