agranulosis vs blood disease

agranulosis and blood disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
agranulosis	Yes	No	No	No
blood disease	Yes	No	No	No

As nouns, blood disease is a hypernym of agranulosis; that is, blood disease is a word with a broader meaning than agranulosis:

agranulosis: an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes
blood disease: a disease or disorder of the blood

Other hypernyms of agranulosis include blood disorder.

agranulosis (noun)	blood disease (noun)
an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes	a disease or disorder of the blood