flash‧point /ˈflæʃpɔɪnt/ noun [countable]

1. a place where trouble or violence might easily develop suddenly and be hard to control:
Hebron has been a flashpoint for years.

2. [usually singular] technical the lowest temperature at which a liquid such as oil will produce enough gas to burn if a flame is put near it

[TahlilGaran] Dictionary of Contemporary English ▲