plasmodium vs sporozoan

plasmodium and sporozoan both are nouns.

Word	Noun	Adjective	Verb	Adverb
plasmodium	Yes	No	No	No
sporozoan	Yes	No	No	No

As nouns, sporozoan is a hypernym of plasmodium; that is, sporozoan is a word with a broader meaning than plasmodium:

plasmodium: parasitic protozoan of the genus Plasmodium that causes malaria in humans
sporozoan: parasitic spore-forming protozoan

plasmodium (noun)	sporozoan (noun)
parasitic protozoan of the genus Plasmodium that causes malaria in humans	parasitic spore-forming protozoan
multinucleate sheet of cytoplasm characteristic of some stages of such organisms as slime molds