protozoan

play
noun pro·to·zo·an \-ˈzō-ən\

Definition of protozoan

  1. :  any of a phylum or subkingdom (Protozoa) of chiefly motile and heterotrophic unicellular protists (such as amoebas, trypanosomes, sporozoans, and paramecia) that are represented in almost every kind of habitat and include some pathogenic parasites of humans and domestic animals

protozoan

adjective

Recent Examples of protozoan from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'protozoan'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of protozoan

New Latin Protozoa, from prot- + -zoa


PROTOZOAN Defined for English Language Learners

protozoan

play
noun

Definition of protozoan for English Language Learners

  • : a tiny organism whose body is a single cell


PROTOZOAN Defined for Kids

protozoan

play
noun pro·to·zo·an \ˌprō-tə-ˈzō-ən\

Definition of protozoan for Students

  1. :  a single-celled organism (as an amoeba or paramecium) that is a protist and is capable of movement


Medical Dictionary

1

protozoan

play
noun pro·to·zo·an \-ˈzō-ən\

Medical Definition of protozoan

  1. :  any protist of the phylum or subkingdom Protozoa


2

protozoan

adjective pro·to·zo·an

Medical Definition of protozoan

  1. :  of or relating to the phylum or subkingdom Protozoa



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