We found one dictionary that defines the word air powers:

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1. air powers: Collins English Dictionary

(Note: See air_power as well.)

Definitions from WordNet (air power) ▸ noun:  the aggregation of a country's military aircraft ▸ Also see air_power ▸ Words similar to air powers ▸ Usage examples for air powers ▸ Idioms related to air powers ▸ Wikipedia articles (New!) ▸ Words that often appear near air powers ▸ Rhymes of air powers ▸ Invented words related to air powers