subclass Infusoria meaning

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subclass Infusoria (noun): in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter.

Definition of subclass Infusoria

in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter
Synonyms: Infusoria
Type of: class

More about subclass Infusoria on Wikipedia.