giardia vs mastigophore

giardia and mastigophore both are nouns.

Word	Noun	Adjective	Verb	Adverb
giardia	Yes	No	No	No
mastigophore	Yes	No	No	No

As nouns, mastigophore is a hypernym of giardia; that is, mastigophore is a word with a broader meaning than giardia:

giardia: a suspected cause of diarrhea in humans
mastigophore: a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals

Other hypernyms of giardia include flagellate, flagellate protozoan, flagellated protozoan, mastigophoran.

giardia (noun)	mastigophore (noun)
a suspected cause of diarrhea in humans	a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals