paramecium
/ˌpærəˈmiːsɪəm/noun
1- Zoology a single-celled freshwater animal which has a characteristic slipper-like shape and is covered with cilia【动】草履虫。
1.1
- Genus Paramecium, phylum Ciliophora, kingdom Protista.草履虫属, 纤毛门, 原生生物界。
词源
mid 18th cent.: modern Latin, from Greek paramēkēs 'oval' from para- 'against' + mēkos 'length'.