| Acronym | Meaning |
| NPD | Normal Photoelectron Diffraction |
| COMAH | Control Of Major Accident Hazards |
| EROS | Earth Resources Observation Satellite |
| ESES | Environmental Sampling Expert System |
| HAN | Heavy Aromatic Naphtha |
| SCC | Standards Council Of Canada |
| RDC | Rotating Disk Contactor |
| CSD | Charge State Distribution |
| EPCE-F2(SIGM | Effective Pair Correlation Energy Method With The Factor-two (f2) Approximation For Sigma-electron Systems |
| MBER | Molecular Beam Electron Resonance |