hirudinean vs bloodsucker

hirudinean and bloodsucker both are nouns.

Word	Noun	Adjective	Verb	Adverb
hirudinean	Yes	No	No	No
bloodsucker	Yes	No	No	No

As nouns, hirudinean and bloodsucker are synonyms defined as:

hirudinean and bloodsucker: carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end

Other synonyms of hirudinean include leech.

hirudinean (noun)	bloodsucker (noun)
carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end	carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end