flashpoint
/ˈflæʃpɔɪnt/noun
1
- a place, event, or time at which trouble, such as violence or anger, flares up（暴力、怒气等麻烦的）爆发点; 导火线; 激化时刻：
the port is a flashpoint between gangs.
这座港口是两个帮派的纷争之地。
2
- Chemistry the temperature at which a particular organic compound gives off sufficient vapour to ignite in air【化】（有机化合物的）闪点, 燃点, 引火点。