| Acronym | Meaning |
| PAPS | Phase-alternated Pulse Sequence |
| IRA | Interim Response Actions |
| EPA | United States Environmental Protection Agency |
| OVGF | Outer-valence Green Function (for Ionization-energy Calcns.) |
| SGHWR | Steam-generating Heavy Water Reactor |
| BKD | Backscatter Kikuchi Diffraction |
| AR | Androgen Receptorpar |
| BMC | Bone Marrow Cell |
| ESMSV | Exponential-spline Morse-spline Van Der Waals (interat.potential) |
| OCP | Organochlorine Pesticide |