| Acronym | Meaning |
| VPT | Variational Perturbation Theory |
| TDD | Telecommunications Device For The Deaf |
| POSAP | Position-sensitive Atom Probe |
| IPCS | International Program On Chemical Safety |
| IUCLID | International Uniform ChemicaL Information Database |
| ROAVERRS | Research On Atmospheric Variability And Atmospheric Response In The Ross Sea |
| OPLC | Overpressured Layer Chromatography |
| HSC | Hyperspherical Coordinate (representation In Calcns. On Electron-atom Scattering) |
| GOE | Gaussian Orthogonal Ensemble (of Random Matrixes In Quantum Chaoticity Study In At. And Nuclear Energy Levels) |
| LIESA | Laser Induced Emission Spectral Analysis |