pereiopod
/pəˈraɪəpɒd/noun
- Zoology each of the eight walking limbs of a crustacean such as a crab or lobster, growing from the thorax【动】（甲壳动物的）步足, 胸足。
词源
late 19th cent.: from Greek peraioōn 'transporting' （present participle of peraioun） + pous, pod- 'foot'.