单词 | testacean |
释义 | tes·ta·cean (tĕ-stāshən) n. Any of various amoeboid protozoans having a hard external covering, found in soil and freshwater habitats. [From New Latin Testācea, former order name, from Latin, neuter pl. of testāceus, covered with a shell, from testa, shell.] tes·tacean adj. |
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