Meaning & use
protozoa
Last updated
Single-celled microscopic organisms that can move and often feed on other microorganisms.
See it in a sentence
The pond water sample contained several types of protozoa under the microscope.
Some protozoa cause serious diseases, such as malaria and dysentery.
A note on using this word
The singular form is "protozoan"; the term is almost always used in the plural.
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