flashover

flash o ver |ˈflaSHˌōvər ˈflæʃˌoʊvər | ▶noun 1 a high-voltage electric short circuit made through the air between exposed conductors. 2 an instance of a fire spreading very rapidly across a gap because of intense heat.

flashover

flash |over |ˈflaʃəʊvə (r )| ▶noun 1 a high-voltage electric short circuit made through the air between exposed conductors. 2 an instance of a fire spreading very rapidly through the air because of intense heat.