Any of a large group of one-celled organisms (called protists) that live in water or as parasites. Many protozoans move about by means of appendages known as cilia or flagella. Protozoans include the amoebas, flagellates, foraminiferans, and ciliates. Their traditional classification as the subkingdom Protozoa is still used for convenience, but it is now known that protozoans represent several evolutionarily distinct groups.
Find another word for protozoon. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for protozoon, like: protozoan, protozoans, arthropod, protozoa, ciliate, platyhelminthes, bryozoa, crustacea, protist, cyanobacteria and unicellular.