air defense (English, noun)
expansion: air defense (countable and uncountable, plural air defenses)
Senses:
topics: engineering
government
military
natural-sciences
physical-sciences
politics
tools
war
weaponry
glosses: The use of systems, equipment, and personnel to prevent or reduce the impact of an attack by enemy aircraft or missiles.
tags: countable
uncountable
Forms:
form: air defenses
tags: plural
form: air defence
tags: alternative