Army Amateur Radio System
After Action Reviews
Asian Association of Remote Sensing
Advanced Aerial Radiac System
Advanced Airborne Radar System
Advanced Airborne Radiac Systems
Advanced Airborne Reconnaissance System
After Action Reports
After Action Review System
American Association of Railroad Superintendents
American Association of Railway Surgeons
Aminoacyl-tRNA synthetase
aminoacyl-tRNA synthetases
Asian Association on Remote Sensing
atlanto-axial rotatory subluxation
Automated Analyst Request System
Automatic Address Recognition System
Automatic Aircraft Reporting System