Protozoa

US:USA pronunciation: respellingUSA pronunciation: respelling(prō′tə zō′ə)

From protozoan (n):

Pro•to•zo•a (prō′tə zō′ə),USA pronunciation n.

Microbiologya major grouping or superphylum of the kingdom Protista, comprising the protozoans.

pro•to•zo•an /ˌproʊtəˈzoʊən/USA pronunciation n., pl. -zo•ans, (esp. when thought of as a group) -zo•a

/-ˈzoʊə/USA pronunciation

adj.

Microbiologya one-celled organism that usually obtains nourishment by taking in food particles rather than by photosynthesis.

adj.

pro•to•zo•ic, adj.

pro•to•zo•an (prō′tə zō′ən),USA pronunciation n., pl. -zo•ans, (esp. collectively) -zo•a (-zō′ə),USA pronunciation adj. [Biol.]
n.

Microbiologyany of a diverse group of eukaryotes, of the kingdom Protista, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their capacity for and means of motility, as by pseudopods, flagella, or cilia.

adj.

Collins Concise English Dictionary © HarperCollins Publishers::

protozoan /ˌprəʊtəˈzəʊən/ n

Also called: protozoon /ˌprəʊtəˈzəʊɒn/ ( pl -zoa /-ˈzəʊə/) any of various minute unicellular organisms formerly regarded as invertebrates of the phylum Protozoa but now usually classified in certain phyla of protoctists. Protozoans include flagellates, ciliates, sporozoans, amoebas, and foraminifers

adj also: protozoic

Etymology: 19th Century: via New Latin from Greek proto- + zōion animal

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