| Acronym | Meaning |
| ISE | Iterative Secular Equation (method For Solving The Schroedinger Equation) |
| RBC | Rotating Biological Contactor |
| FIAT | Field Information Agency Technical |
| BOCV | Biorthogonality Constrained Variation Method |
| SVC | Semivolatile Organic Compound |
| LDC | Less Developed Countries |
| BMG | Bulk Metallic Glass |
| HELP | Heuristic Evolving Latent Projection |
| ERAQS | Eastern Regional Air Quality Study |
| SPASE | South Pole Air Shower Expt. |