air defense

English Thesaurus

1. defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness (noun.act)

hypernym	:	defence, defense, defensive measure,
definition	:	(military) military action or resources protecting a country against potential enemies (noun.act)

hyponym	:	active air defense,
definition	:	air defense by the use aircraft or missiles or artillery or electronic countermeasures (noun.act)

hyponym	:	passive air defense,
definition	:	air defense by the use of deception or dispersion or protective construction (noun.act)