Simple Definition of protozoan

from our Learner's Dictionary

protozoan

noun

ˌproʊtəˈzowən How to pronounce protozoan (audio)
plural protozoans
: a tiny organism whose body is a single cell
Amoebas are protozoans.

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“Protozoan.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/protozoan. Accessed 24 Jun. 2026.

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