Scleroprotein
ahd-5
noun.
Any of a class of generally insoluble proteins, such as collagen, found especially in skeletal and connective tissue.
The Century Dictionary and Cyclopedia
noun.
A term suggested to designate the albuminoids which occur widely distributed in the skeletal tissues of the animal organism.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Any of many
fibrous
proteins
found in
connective tissue
etc
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a simple protein found in horny and cartilaginous tissues and in the lens of the eye
Word Usage
"It is a scleroprotein present largely in cuticular structures such as hair, nails, horn."