| Acronym | Meaning |
| DTPMP | Diethylenetriaminopenta(methylenephosphonic Acid) |
| ARM | Area Radiation Monitoring |
| HWIR | Hazardous Waste Identification Rule |
| LGM | Linearized Green-function Method (for Electronic-structure) |
| PWM | Pokeweed Mitogen |
| HPOTP | High Pressure Oxidizer Turbopump |
| PFBC-CC | Pressurized Fluidized-bed Combustion/combined Cycle (of Coal) |
| YFEGE | Yonei Free-electron-gas Exchange |
| MIRACL | Mid Infrared Advanced Chemical Laser |
| QMO | Quaternionic Molecular Orbital Method |