| Acronym | Meaning |
| ETO | Exponential-type Orbital |
| BJH | Bopp-Jancso-Heinzinger (potential Function) |
| IMO | International Maritime Organization |
| REA | Retrospective Exposure Assessment |
| RAMP | Receptor Activity Modifying Protein |
| SIS | Stepwise Isothermal Segregation |
| DI | Direct Injection (engine; Diesel) |
| SRP | Spreading Resistance Profiling |
| DMPP | 1,1-dimethyl-4-phenylpiperazinium Iodide |
| PSCA | Periodic Small-cluster Approach (a Many-body Technique In Electronic-structure Calcns.) |