| Acronym | Meaning |
| IPMA | Ion Probe Microanalysis |
| PVEC | Photovoltaic Energy Conversion |
| IMOA | Iterative Maximum Overlap Approximation |
| MCLR | Multiconfigurational Linear Response (an MC-SCF Method) |
| ESE | Extended-surface Electrolysis |
| MCCP | Mountain Cloud Chemistry Program |
| CLOPPA | Contribution From Localized Molecular Orbitals With Polarization Propagator Approach |
| TSSMS | Time Sharing Service Management System |
| AFRSI | Advanced Flexible Reusable Surface Insulation |
| DIANE | Direct Information Access Network For Europe |