hirudinean vs leech

hirudinean and leech both are nouns.

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

As nouns, hirudinean and leech are synonyms defined as:

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

Other synonyms of hirudinean include bloodsucker.

hirudinean (noun)	leech (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
	a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

hirudinean (verb)	leech (verb)
	draw blood