side-necked turtle
/ˈsaɪdnekt/noun
1- a freshwater turtle with a relatively long head and neck that is retracted sideways into the shell for defence侧颈龟。
1.1
- Suborder Pleurodira: families Chelidae (South America and Australasia) and Pelomedusidae (South America and southern Africa), and several genera.侧颈龟亚目：（南美和澳大拉西亚的）蛇颈龟科和（南美和非洲南部的）侧颈龟科, 数属。