Dictionary

infusorian

noun in·fu·so·ri·an \-ē-ən\

Definition of INFUSORIAN

:  any of a heterogeneous group of minute organisms found especially in water with decomposing organic matter; especially :  a ciliated protozoan
infusorian adjective

Origin of INFUSORIAN

ultimately from Latin infusus
First Known Use: 1859

infusorian

noun in·fu·so·ri·an \-ē-ən\   (Medical Dictionary)

Medical Definition of INFUSORIAN

:  any of a heterogeneous group of minute organisms found especially in water with decomposing organic matter; especially :  a ciliated protozoan
infusorian adjective

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