sporozoan vs protozoan

sporozoan and protozoan both are nouns.

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

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

sporozoan: parasitic spore-forming protozoan
protozoan: any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

Other hypernyms of sporozoan include protozoon.

sporozoan (noun)	protozoan (noun)
parasitic spore-forming protozoan	any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

sporozoan (adjective)	protozoan (adjective)
	of or relating to the Protozoa