| Acronym | Meaning |
| TCM | Tunneling Current Microscopy |
| CMSSM | Constrained Minimal Supersymmetric Standard Model |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| PSC | Polar Stratospheric Clouds (in Antarctic) |
| RIS | Rotational Isomeric State |
| PMDL | Practical Method Detection Limit |
| PIPECO | Photoion-photoelectron Coincidence Spectroscopy |
| GPMAS | Gas Phase Molecular Absorption Spectrometry |
| SXAPS | Soft X-ray Appearance Potential Spectroscopy |
| APC | Anaphase-promoting Complex |