anemia vs blood disorder

anemia and blood disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
anemia	Yes	No	No	No
blood disorder	Yes	No	No	No

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

Other hypernyms of anemia include blood disease.

anemia (noun)	blood disorder (noun)
a deficiency of red blood cells	a disease or disorder of the blood
a lack of vitality