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Flash point

//ˈflæʃ ˌpɔɪnt// noun

Noun

1
The lowest temperature at which a liquid can form an ignitable mixture in air near the surface of the liquid.
"The whole cursed corporation ought to be rooted out and drowned in its own incombustible product. What is the flash point of this condemned coal oil anyway?"
2
the lowest temperature at which the vapor of a combustible liquid can be ignited in air wordnet
3
A hotspot; a dangerous place of violent political unrest. figuratively
"This strategic outcrop is home to a handful of derelict buildings once used to house US military personnel. But it has become a new flashpoint in the global rivalry between Beijing and Washington, as the US struggles to develop a coherent strategy to deal with China’s rising influence in Latin America."
4
point at which something is ready to blow up wordnet

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