| Acronym | Meaning |
| HCCI | Homogeneous Charge Compression Ignition |
| IME | Interdigitated Microsensor Electrode |
| RHFT | Relativistic Hartree-Fock Two-channel (for Scattering) |
| NIRIM | National Institute For Research In Inorganic Materials |
| PM10 | Particulate Matter |
| PSCC | Pseudostate Close Coupling |
| BAPMON | Background Air Pollution Monitoring Network |
| MC-MBPT | Multiconfiguration Many-body Perturbation Theory |
| REMPI | Resonance-Enhanced Multiphoton Ionization (for Mass Spectrometry) |
| MVC | Multi-variable Control |