| Acronym | Meaning |
| TSAE | Two-state Atomic Expansion (model For Atom-ion Collisions) |
| MRS | Monitored Retrievable Storage (for Radioactive Wastes) |
| OCEC | Open-channel Electrochromatography |
| QPEN | Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei |
| RCI | Restricted Configuration Interaction |
| FCI | Full Configuration Interaction |
| BGC | Biogeochemical Cycling |
| CCPA | Constant Centrifugal Potential Approximation |
| RAMP | Receptor Activity Modifying Protein |
| BFU-E | Burst-forming Unit-erythroid |