terrapin
noun /ˈterəpɪn/
/ˈterəpɪn/
- a small turtle (= a reptile with a hard round shell), that lives in warm rivers and lakes in North America
compare tortoiseTopics Animalsc2水龟(生活在北美温带江河湖泊中) 词源early 17th cent. (denoting the diamondback terrapin): of Algonquian origin.