| Acronym | Meaning |
| TART | Tip-angle Reduced T1 Imaging |
| AIA | Automated Image Analysis |
| ETS | External Transcribed Spacer |
| SIS | Stepwise Isothermal Segregation |
| ESA | Electron Stimulated Adsorption |
| SDTQ-MBPT | Single-double-triple-quadruple Excitation (contribution) MBPT |
| IMO | International Maritime Organization |
| ERP | Environmental Review Process |
| NNLO | Next-to-next-to-leading Order |
| IATA | International Air Transport Association (Geneva |