| Acronym | Meaning |
| SPIO | Superparamagnetic Iron Oxide |
| PSHF | Pseudospectral Hartree-Fock |
| IEA | International Energy Agency |
| EEDF | Electron Energy Distribution Function |
| BH | Barbanis Hamiltonian |
| AQIRP | Auto/Oil Air Quality Improvement Research Program |
| NSSS | National Sewage Sludge Survey |
| EFS | Event-free Survival |
| PRDA | Program Research And Development Announcement |
| LDRP | Leak Detection And Repair Program |