spark gap

English Thesaurus

1. the gap between two high-potential terminals (noun.artifact)

hypernym	:	crack, gap,
definition	:	a narrow opening (noun.artifact)

part meronym	:	induction coil,
definition	:	a coil for producing a high voltage from a low-voltage source (noun.artifact)

2. a component of an ignition system; consists of two shaped electrodes and the space between them (noun.artifact)

hypernym	:	component, constituent, element,
definition	:	an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system (noun.artifact)

part meronym	:	ignition, ignition system,
definition	:	the mechanism that ignites the fuel in an internal-combustion engine (noun.artifact)