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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 go
a usually nonphotosynthetic free-living protozoan with whiplike appendages

trichomonad
cause of trichomoniasis in women and cattle and birds

noun.animal

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