Additive Increase Rate 
Air Injection Reaction 
All-India Radio 
Airguard 
All India Radio 
American Institutes for Research 
aerosol ionic redistribution 
Air Intercept Rocket 
Aircraft Inventory Record 
Allowed Information Rate 
assumed interest rate 
Automatic Image Refinement 
Action Item Report 
Adaptive Intercommunication Requiremen… 
Adobe Integrated Runtime 
Aerospace Information Report 
Air Injection Reactor 
Airborne Imaging Radar 
Air-Incident Recording 
American Institute for Research 
As I Remember 
Association for Institutional Research 
Association of Independents in Radio 
Atmospheric Ionizing Radiation 
Australian Institute of Radiography 
AAR Corp. 
Accelerated Idioventricular Rhythm 
acetaldehyde-inducible regulation 
acidosis-induced retinopathy 
Acquisition Information Reporting