Sirenia
/saɪˈriːnɪə/1
- Zoology an order of large aquatic plant-eating mammals which includes the manatees and dugong. They live chiefly in tropical coastal waters and are distinguished by paddle-like forelimbs and a tail flipper replacing hindlimbs.【动】海牛目。
1.1
- Order Sirenia: two families and four living species.海牛目：2科, 4活种。
派生词
sirenian
noun & adjective词源
modern Latin （see SIREN）.