cystic fibrosis vs fibrosis

cystic fibrosis and fibrosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
cystic fibrosis	Yes	No	No	No
fibrosis	Yes	No	No	No

As nouns, fibrosis is a hypernym of cystic fibrosis; that is, fibrosis is a word with a broader meaning than cystic fibrosis:

cystic fibrosis: the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known
fibrosis: development of excess fibrous connective tissue in an organ

Other hypernyms of cystic fibrosis include monogenic disease, monogenic disorder.

cystic fibrosis (noun)	fibrosis (noun)
the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known	development of excess fibrous connective tissue in an organ