IF has various meanings in the Military category. Discover the full forms, definitions, and usage contexts of IF in Military.
Electromagnetic radiation of wavelengths between 7500 A, the limit of the visible light spectrum at the red end, and centimetric radio waves.
MilitaryAlso called IFR flight, on instruments. An aircraft flight conducted by use of navigational instruments that permit the flight crew to proceed without reference to visual landmarks or celestial fixes.
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