| Acronym | Meaning |
| COHSEX | Coulomb-hole (plus) Screened-exchange (approxn. In Band-structure Calcns.) |
| FLASH | Fast Low-angle Shot (NMR Imaging) |
| PFA | Principal Factor Analysis |
| CLSM | Confocal Laser Scanning Microscopy |
| ERD | Electron Recoil Detection |
| LRFDCD | Lifetime-resolved Fluorescence-detected Circular Dichroism |
| TDGI | Time-dependent Gage-invariant (quantum Calcn. Method) |
| CASSCF-CCI | Complete Active Space Self-consistent Field-contracted CI |
| MRM | Multiresidue Method |
| APCI | Atm. Pressure Chem. Ionization |