collagen vs albuminoid

collagen and albuminoid both are nouns.

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

As nouns, albuminoid is a hypernym of collagen; that is, albuminoid 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
albuminoid: a simple protein found in horny and cartilaginous tissues and in the lens of the eye

Other hypernyms of collagen include scleroprotein.

collagen (noun)	albuminoid (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