| Acronym | Meaning |
| APACHE | Accelerator For Physics And Chemistry Of Heavy Elements |
| PRECP | Processing Emissions By Cloud And Precipitation (DOE Program) |
| PSC | Polar Stratospheric Clouds (in Antarctic) |
| ESMR | Electrically Scanning Microwave Radiometer |
| CEPP | Chemical Emergency Preparedness Plan |
| MERD | Mine Emergency Responsiveness Development |
| EHF | Extended Hartree-Fock |
| BSC | Bundle Sheath Cellpar |
| RANTES | Regulated On Activation Normal T Cell Expressed And Secreted |
| SXRFMA | Synchrotron X-ray-fluorescence Microanalysis |