flashpoint
nounUK /ˈflæʃpɔɪnt/
US /ˈflæʃpɔɪnt/
A flashpoint is the moment or place where something suddenly becomes dangerous or angry.
The argument over the last cookie was the flashpoint that started the whole fight.
OTHER MEANINGS
2. The lowest temperature at which a liquid gives off enough vapor to catch fire.
Gasoline has a very low flashpoint, so it must be handled carefully.
3. A place where violence or trouble suddenly begins.
The border town became a flashpoint during the dispute.
4. A point of sudden change or crisis in a situation.
The new law proved to be a flashpoint for public debate.