| Acronym | Meaning |
| TPRRS | Transient Photoinduced Resonant Raman Scattering |
| HFPT | Hartree-Fock Perturbation Theory |
| MQES | Metastable-quenched Electron Spectroscopy |
| SHREWD | Standoff Handheld Real-time Early Warning Detector |
| BLRG | Broad-line Radio Galaxy |
| AAT | Atomic Axial Tensor (in Mol. Optical Properties Calcns.) |
| TRACE | Transport And Atmospheric Chemistry Near The Equator |
| SD | Std. Deviation |
| PIPICO | Photoion-photoion Coincidence |
| ISGF | Interferon-stimulated Gene Factor |