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WordReference Random House Learner's Dictionary of American English © 2024pro•to•zo•an /ˌproʊtəˈzoʊən/USA pronunciation n., pl. -zo•ans, (esp. when thought of as a group) -zo•a /-ˈzoʊə/USA pronunciation adj.
n. [countable] - Microbiologya one-celled organism that usually obtains nourishment by taking in food particles rather than by photosynthesis.
adj. - Microbiologyof, relating to, or characteristic of a protozoan.
pro•to•zo•ic, adj.
WordReference Random House Unabridged Dictionary of American English © 2024pro•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. - Microbiologyof, pertaining to, or characteristic of a protozoan.
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