Noun: flashover 'flash,ow-vu(r)
- An unintended electric discharge (as over or around an insulator)
"The faulty wiring caused a flashover, damaging the electrical equipment"
- Stage in an enclosed fire when the temperature becomes high enough to involve the entire combustible contents of the room
"The firefighters arrived just before the room reached flashover"
Derived forms: flashovers
Type of: arc, discharge, electric arc, electric discharge, spark
Encyclopedia: Flashover