| Abbreviation | Definition |
|---|---|
| AM | Administration and Management Operations |
| AM | Actuator Mechanism |
| AM | Application Manager |
| AM | Agile Modeling |
| AM | Automated Mathematician |
| AM | Aeronautical Mobile |
| AM | Aerospace Medicine |
| AM | Address Management |
| AM | Absolutely Magnificent |
| AM | Alternative Medium |
| AM | Account Monitoring |
| AM-10 | AMSAT Oscar-10 AMateur SATellite |
| AMA | Analytic Meticulous And Affordable |
| AMA | Atomic Moment Approximation |
| AMA | AWIS Meteorological Applications |
| AMA | Actual Mechanical Advantage |
| AMA | Adaptive Management Area |
| AMA | Advanced Maternal Age |
| AMA | Anti-Mitochondrial Antibody |
| AMA | Anti Mitochondrial Antibodies |
| AMA | American Motorcyclist Association |
| AMA | Another Medial Anomaly |
| AMA | American Medical Association |
| AMA | Animal Medicines Drug Use Clarification Act |
| AMA | Amateur Martial Arts |
| AMA | Automotive Manufacturers Association |
| AMA | Against Medical Advice |
| AMA | Associacion Mexicana Automovilistica |
| AMA | Arm Muscle Area |
| AMA | American Management Association |
| AMAB | Associazione Mediterannea Agricoltura Biologica |
| AMAD | Airborne Missions and Applications Division |
| AMANDA | Advanced Maryland Automated Network Disk Archiver |
| AMAP | Arctic Monitoring and Assessment Programme |
| AMAP | As Much As Possible |
| AMAP | Arctic Monitoring and Assessment Program |
| AMAP | American Medical Accreditation Program |
| AMAP | Advanced Management Accounting Program |
| AMARC | Association Mondiale des Radiodiffusuers Communautaires |
| AMASS | Airport Movement Area Safety System |
| AMAT | Average Memory Access Time |
| AMB | Ambulate |
| AMB | Australian Mountain Bike |
| AMB | Anomalous Muscle Bundle |
| AMBA | Accelerated Masters in Business Administration |
| AMBA | Advanced Microcontroler Bus Architecture |
| AMBCS | Associate Member of the British Computer Society |
| AMBDR | Arkansas Minority Business Development Roundtable |
| AMBE | Advanced Multi-Band Excitation |
| AMBL | Acute Megakaryoblastic Leukemia |