| Abbreviation | Definition |
|---|---|
| AMA | Actual Mechanical Advantage |
| AMANDA | Antarctic Muon And Neutrino Detector Array |
| AMB | As Measured By .... |
| AMC | Aluminium Matrix Composite |
| AMD | Area Mass Density |
| AMDF | Angular Momentum Distribution Function |
| AMOP | Atomic Mesoscopic and Optical Physics |
| AMOP | Atomic Molecular and Optical Physics |
| amp | amplitude |
| AMPC | Advances in Materials Physics and Chemistry |
| AMS | Accelerator Mass Spectrometry |
| AMS | Alpha Magnetic Spectrometer |
| AMS | Anisotropy of Magnetic Susceptibility |
| AMSB | Anomaly Mediated Supersymmetry Breaking |
| AMSR | Advanced Microwave Scanning Radiometer |
| ANPL | Alquds Nuclear Physics Laboratory |
| AO | Adaptive Optics |
| AO | Advanced Optics |
| AOI | Angle Of Incidence |
| AOI | Areas Of Interaction |