remora vs sharksucker

remora and sharksucker both are nouns.

Word	Noun	Adjective	Verb	Adverb
remora	Yes	No	No	No
sharksucker	Yes	No	No	No

As nouns, sharksucker is a hyponym of remora; that is, sharksucker is a word with a more specific, narrower meaning than remora:

remora: marine fishes with a flattened elongated body and a sucking disk on the head for attaching to large fish or moving objects
sharksucker: remoras found attached to sharks

Other hyponyms of remora include Echeneis naucrates, Remilegia australis, whale sucker, whalesucker.

remora (noun)	sharksucker (noun)
marine fishes with a flattened elongated body and a sucking disk on the head for attaching to large fish or moving objects	remoras found attached to sharks