ctenidium
/tɪˈnɪdɪəm/noun
(pl. ctenidia /-ɪə/)
- Zoology a comb-like structure, especially a respiratory organ or gill in a mollusc, consisting of an axis with a row of projecting filaments【动】（软体动物的）栉鳃。
词源
late 19th cent.; modern Latin, from Greek ktenidion, diminutive of kteis, kten- 'comb'.