elastin vs scleroprotein

elastin and scleroprotein both are nouns.

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

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

elastin: a fibrous scleroprotein found in elastic tissues such as the walls of arteries
scleroprotein: a simple protein found in horny and cartilaginous tissues and in the lens of the eye

Other hypernyms of elastin include albuminoid.

elastin (noun)	scleroprotein (noun)
a fibrous scleroprotein found in elastic tissues such as the walls of arteries	a simple protein found in horny and cartilaginous tissues and in the lens of the eye