hydremia vs blood disorder

hydremia and blood disorder both are nouns.

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

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

hydremia: blood disorder in which there is excess fluid volume compared with the cell volume of the blood
blood disorder: a disease or disorder of the blood

Other hypernyms of hydremia include blood disease.

hydremia (noun)	blood disorder (noun)
blood disorder in which there is excess fluid volume compared with the cell volume of the blood	a disease or disorder of the blood