| 释义 |
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.
Collins Concise English Dictionary © HarperCollins Publishers:: protozoan /ˌprəʊtəˈzəʊən/ n ( pl -zoa / -ˈzəʊə/, -zoans)- Also called: protozoon /ˌprəʊtəˈzəʊɒn/ ( pl -zoa) 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 - of or relating to protozoans
Etymology: 19th Century: via New Latin from Greek proto- + zoion animal |