collagen vs scleroprotein

collagen and scleroprotein both are nouns.

Word	Noun	Adjective	Verb	Adverb
collagen	Yes	No	No	No
scleroprotein	Yes	No	No	No

As nouns, scleroprotein is a hypernym of collagen; that is, scleroprotein is a word with a broader meaning than collagen:

collagen: a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling
scleroprotein: a simple protein found in horny and cartilaginous tissues and in the lens of the eye

Other hypernyms of collagen include albuminoid.

collagen (noun)	scleroprotein (noun)
a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling	a simple protein found in horny and cartilaginous tissues and in the lens of the eye