| Acronym | Meaning |
| CTEM | Conventional Transmission Electron Microscopy |
| PDR | Photon-dominated Region |
| ICWM | Institute Of Chemical Waste Management |
| ACC | American Chemistry Council |
| ECAP | Energy-compensated Atom Probe |
| QUPID | Quantum Path Integral (mol.) Dynamics (method In Mol. Calcns.) |
| CGTF | Cartesian Gaussian-type Function |
| TDHF | Time-dependent Hartree-Fock Method |
| ILS | Intracavity Laser Spectroscopy |
| SWIFT | Stored Wave-form Inverse Fourier Transform |