Definition of "protozoon" []

• A protozoan. (noun)

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• "The malarial haematozoon is a protozoon, a very small protozoon since it lives and develops in the red blood cells which in man have a diameter of only 7 microns."
• "It is spread from person to person by the bite of the tsetse fly, which carries the protozoon and is famous for that reason."
• "Let us begin our comparative study with an example of the simplest animals that consist of only a single cell, such as the little protozoon"