Definition of flashpoint noun from the Oxford Advanced American Dictionary

 

flashpoint

 noun
noun
NAmE//ˈflæʃpɔɪnt//
 
[countable, uncountable]
 
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a situation or place in which violence or anger starts and cannot be controlled Tension in the city is rapidly reaching flashpoint. potential flashpoints in the suburbs
See the Oxford Advanced Learner's Dictionary entry: flashpoint