ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
( -s )
Etymology: from spark over, v.
: a disruptive electric discharge ; especially : an undesired sparking (as in charging a Leyden jar) between two conductors
high-voltage generator operating in a pressure chamber to prevent electrical sparkover — Science
sparkover potential