cyclostome
/ˈsaɪkləstəʊm/noun
1- Zoology an eel-like jawless vertebrate with a round sucking mouth, of a former group that included the lampreys and hagfishes【动】圆口类脊椎动物。
1.1
- Subclass Cyclostomata, now incorporated in the superclass Agnatha.圆口亚纲, 现归于无颌总纲。
词源
mid 19th cent.: from CYCLO- + Greek stoma 'mouth'.