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Related to hirudinean: Hirudinea
(Animals) obsolete any worm or leech belonging to the Hirudinidae family of annelids
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|Noun||1.||hirudinean - carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end|
annelid, annelid worm, segmented worm - worms with cylindrical bodies segmented both internally and externally
Hirudo medicinalis, medicinal leech - large European freshwater leech formerly used for bloodletting
horseleech - any of several large freshwater leeches