dinoflagellate vs mastigophore

dinoflagellate and mastigophore both are nouns.

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

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

dinoflagellate: chiefly marine protozoa having two flagella; a chief constituent of plankton
mastigophore: a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals

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

dinoflagellate (noun)	mastigophore (noun)
chiefly marine protozoa having two flagella; a chief constituent of plankton	a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals