| Acronym | Meaning |
| PFT | Pulmonary Functional Test(s) |
| LIGO | Laser-interferometer Gravitational-wave Observatory |
| RPV | Reactor Pressure Vessel |
| PILC | Pillar Interlayered Clays |
| APDI | Anisotropic Point-dipole Interaction (model For Calcg. Long-range Intermol. Dispersion Forces) |
| IRIS | Infrared Interferometer Spectrometer |
| NLP | Nonlinear Programming |
| ALEPH | Apparatus For LEP PHysics |
| ASE | Augmented Secular Equation |
| CCSA | Const. Current Stripping Anal. |