Definition

1. Noun:
   • The lowest temperature at which the vapor of a combustible liquid can be ignited in air: This is a scientific term describing a specific, measurable property of a flammable substance.
   • A point at which something is ready to blow up: This is a figurative meaning describing a critical moment of high tension or a volatile situation that is likely to erupt into violence or conflict.

Usage Examples

• Noun (Scientific):

  • The chemical's low flashpoint makes it extremely dangerous to store near heat sources.
  • Safety data sheets always list a material's flashpoint.

• Noun (Figurative):

  • The disputed border region has long been a flashpoint for conflict between the two nations.
  • The controversial policy decision became a political flashpoint.

Advanced Usage

• "To reach flashpoint": To arrive at a critical stage of tension or volatility.
  • Diplomatic relations between the countries have reached flashpoint.

Variants and Related Words

• Flash point: An alternative spelling for the noun.
• Flashover (n): A related but distinct term in fire safety, describing the near-simultaneous ignition of all exposed combustible material in an enclosed space.

Synonyms

• Ignition point: (For the scientific meaning) The temperature at which a substance ignites.
• Tinderbox: (For the figurative meaning) A situation that is dangerously volatile.
• Powder keg: (For the figurative meaning) A situation with the potential for sudden and violent escalation.

Related Idioms

• A tinderbox situation: Similar to the figurative use of flashpoint, describing a highly volatile scenario.
  • The crowded protest was a tinderbox situation, requiring careful police management.

Noun

1. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
2. point at which something is ready to blow up