dumdum

名词 dumdum:

1. a soft-nosed small-arms bullet that expands when it hits a target and causes a gaping wound
   同义词：dumdum bullet

dum.dum

n.（名词）
A hollow-point small-arms bullet designed to expand upon impact, inflicting a gaping wound.
达姆弹：一种弹头内凹的小型武器的子弹，设计为遇冲击时会扩开，增大伤口大小

来源：
After Dum Dum , a town of northeast India
After Dum Dum , a town of northeast India