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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

animal, animate being, beast, brute, creature, fauna go
a living organism characterized by voluntary movement

invertebrate go
any animal lacking a backbone or notochord

worm go
any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes

annelid, annelid worm, segmented worm
worms with cylindrical bodies segmented both internally and externally

noun.animal

4 Subcategories

archiannelid go
small primitive marine worm lacking external segmentation and resembling polychaete larvae
oligochaete, oligochaete worm go
hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body
polychaete, polychete, polychaete worm, polychete worm go
chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles
leech, bloodsucker, hirudinean go
carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end