protozoan or protozoon
(pro\'to-zo\'an, pl. protozoa)
A microorganism belonging to the Protozoa subkingdom. A unicellular or acellular eucaryotic protist whose organelles have the functional role of organs and tissues in more complex forms. Protozoa vary greatly in size, morphology, nutrition, and life cycle.

Microbiology. . 2009.

Look at other dictionaries:

  • protozoan — [prōt΄ō zōän΄, prōt΄ə zō′än΄] n. [< ModL Protozoa, name of the phylum (see PROTO & ZOA) + AN] protozoans or protozoa [prōt΄ə zō′ə] any of a subkingdom (protozoa) of microscopic animals made up of a single cell or a group of more or less… …   English World dictionary

  • protozoon — noun any of diverse minute acellular or unicellular organisms usually nonphotosynthetic • Syn: ↑protozoan • Derivationally related forms: ↑protozoan • Hypernyms: ↑protoctist • Hyponyms: ↑ …   Useful english dictionary

  • protozoan — 1. A member of the phylum Protozoa. SYN: protozoon. 2. Relating to protozoa. SYN: protozoal. * * * pro·to·zo·an zō ən n any protist of the phylum or subkingdom Protozoa protozoan adj of or relating to the phylum or subkingdom Protozoa * * * n. a …   Medical dictionary

  • protozoan — 1. noun Any of the diverse group of eukaryotes, of the phylum Protozoa, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their… …   Wiktionary

  • protozoan — /proʊtəˈzoʊən / (say prohtuh zohuhn) noun 1. a member of the subkingdom Protozoa, comprising animals consisting of one cell or of a colony of like or similar cells. –adjective Also, protozoic. 2. of or relating to any of the Protozoa. {New Latin… …   Australian English dictionary

  • protozoan — n. & adj. n. (also protozoon) (pl. protozoa or protozoans) any usu. unicellular and microscopic organism of the subkingdom Protozoa, including amoebae and ciliates. adj. (also protozoic) of or relating to this phylum. Derivatives: protozoal adj.… …   Useful english dictionary

  • Protozoa — Leishmania donovani, (a species of protozoa) in a bone marrow cell Protozoa are a diverse group of single cell eukaryotic organisms,[1] many of which are motile. Throughout history, protozoa have been defined as single cell protists …   Wikipedia

  • protist — protistan /proh tis teuhn/, adj., n. protistic, adj. /proh tist/, n. any of various one celled organisms, classified in the kingdom Protista, that are either free living or aggregated into simple colonies and that have diverse reproductive and… …   Universalium

  • mastigophoran — noun a usually nonphotosynthetic free living protozoan with whiplike appendages; some are pathogens of humans and other animals • Syn: ↑flagellate, ↑flagellate protozoan, ↑flagellated protozoan, ↑mastigophore • Derivationally related forms:… …   Useful english dictionary

  • sporozoan — noun parasitic spore forming protozoan • Hypernyms: ↑protozoan, ↑protozoon • Hyponyms: ↑sporozoite, ↑trophozoite, ↑merozoite, ↑coccidium, ↑eimeria, ↑ …   Useful english dictionary

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