| Acronym | Meaning |
| HPAC | High Performance Affinity Chromatography |
| PCU | Process Control Unit |
| IPIECA | International Petroleum Industry Environmental Conservation Association |
| PBC | Primary Biliary Cirrhosis |
| JMTR | Japan Material Testing Reactor |
| EPI | Echo-planar Imaging |
| APRF | Acute Phase Response Factor |
| NPOESS | National Polar Orbiting Environmental Satellite System |
| VIMS | Visible And IR Mapping Spectrometer |
| ISSC | International Subcommission On Stratigraphic Classification |