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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

microorganism, micro-organism go
any organism of microscopic size

protoctist go
any of the unicellular protists

protozoan, protozoon go
any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

flagellate, flagellate protozoan, flagellated protozoan, mastigophoran, mastigophore
a usually nonphotosynthetic free-living protozoan with whiplike appendages

noun.animal

8 Subcategories

dinoflagellate go
chiefly marine protozoa having two flagella
Leishmania, genus Leishmania go
flagellate protozoan that causes leishmaniasis
zoomastigote, zooflagellate go
flagellate protozoan lacking photosynthesis and other plant-like characteristics
hypermastigote go
flagellate symbiotic in the intestines of e.g. termites
polymastigote go
flagellates with several flagella
costia, Costia necatrix go
a flagellate that is the cause of the frequently fatal fish disease costiasis
giardia go
a suspected cause of diarrhea in humans
trichomonad go
cause of trichomoniasis in women and cattle and birds