flashover

[ flash-oh-ver ]

/ ˈflæʃˌoʊ vər /

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noun

Electricity. a disruptive discharge around or over the surface of a solid or liquid insulator.

the moment of conflagration or complete incineration caused by superheated air or combustibles.

verb (used without object)

Electricity. to have or experience a flashover.

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Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of flashover

First recorded in 1890–95; originally noun use of verb phrase flash over

Words nearby flashover

flashlight, flashlight fish, flash-lock, flash memory, flash mob, flashover, flashpacker, flash photography, flash photolysis, flash picture, flash point

British Dictionary definitions for flashover

flashover

/ (ˈflæʃˌəʊvə) /

noun

an electric discharge over or around the surface of an insulator

the sudden and rapid spread of fire through the air, caused by the ignition of smoke or fumes from surrounding objects

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012