| Acronym | Meaning |
| MBS | Minimum Basis Set Wave Function |
| ORPI | Off-resonance Proton Irradiation |
| SINNMR | Sonically Induced Narrowing Of The NMR Spectra Of Solids |
| GAO | General Accounting Office |
| BARC | Bhabha Atomic Research Center |
| EFGF | Electric Field Gradient Focusing |
| MRS | Monitored Retrievable Storage (for Radioactive Wastes) |
| NPDWR | National Primary Drinking Water Regulations |
| MLTCS | Mesosphere-lower Thermosphere Coupling Study |
| LIFS | Laser Induced Fluorescence Spectroscopy |