Definition

A sudden and uncontrolled spread of fire or flame across a surface, often occurring when the temperature is high enough to ignite all flammable materials at once.

Example

The fire department warned that a flashover could occur if the temperature continued to rise.

Conversation

Did you hear about the recent fire downtown?

Yeah, I read that a flashover occurred and spread really quickly.

That's so scary! I can't believe how fast it can happen.

I know, right? It just shows how important fire safety is.

Synonyms & Antonyms

Root Explanation

Flashover → It is formed from "flash" (from Middle English *flaschen*, meaning to emit light suddenly) and "over" (meaning above or across). The term describes a sudden spread of fire across a surface or area, as if the flames are flashing over it.

Memory Tip

Imagine a sudden burst of light ('flash') that spreads quickly 'across' ('over') an area, which helps you remember that 'flashover' refers to a rapid spread of fire.

Visually Confused Words