sort by Rank | Alpha
| Possible Meanings | Rank |
| Amerson Precision Sheet Metal | *** |
| adult polysaccharide storage myopathy | ** |
| Alternating Phase Shifting Masks | ** |
| Avant Projet Sommaire Modificatif | ** |
| Active Poly Sodium Metasilicate | ** |
| Ammonia Process Safety Management | ** |
| Association of Physical Scientists in Medicine | ** |
| Assistant Primary School Master | ** |
| Austrian Political Stock Market | ** |
| Automatic Patient Symptom Monitor | ** |
| Access Project Security Manager | ** |
| Alternating Phase Shift Masks | ** |
| Advanced Power System Management | ** |
| Agent Platform Security Manager | ** |
| Aviation Program Safety Manager | * |
| Antenna Power Switching and Monitoring | * |
| Advanced Priority Statistical Multiplexing | * |
| Alternating Phase Shift Mask | * |
| Application Performance and Systems Management | * |
| Association of Poway School Managers | * |
| Aerosol Physical State Model | * |
| Asia Pacific Social Movements | * |
| Attenuated Phase Shift Mask | * |
| Attenuated Phase Shifting Mask | * |
| All Possible Steps to Minimize | * |