trumpet shell
noun
1- the shell of a large marine mollusc which can be blown to produce a loud note法螺壳（可作号角用）。
1.1
- Several species in the class Gastropoda, in particular the triton (Charonia tritonis, family Cymatiidae).腹足纲中数种, 尤指法螺（拉丁名Charonia tritonis, 嵌线螺科）。