air-breathing 🔊 Listen to this < /ˈɛərˌbriðd/, air-breath·ing. (of an engine, aircraft, missile, etc.) to take in air from the atmosphere to oxidize the fuel for combustion. Your two options for Grade D breathing air | 2015-08-03 | ISHN The lung is the essential respiration organ in many air-breathing Useful Android Apps to Breathe in Fresh Air – MobileAppDaily Air – Liberal Dictionary Free Air Breathing Art Prints and Wall Artwork | FreeArt Air Breathing Image Share Facebook Twitter Google +