noctiluca vs dinoflagellate

noctiluca and dinoflagellate both are nouns.

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

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

noctiluca: large bioluminescent marine protozoan
dinoflagellate: chiefly marine protozoa having two flagella; a chief constituent of plankton

noctiluca (noun)	dinoflagellate (noun)
large bioluminescent marine protozoan	chiefly marine protozoa having two flagella; a chief constituent of plankton