| Acronym | Meaning |
| UIHRS | Upflow Inclined High-rate Settlers |
| IRED | Ion Radiation-enhanced Diffusion |
| BJT | Bipolar Junction Transistors |
| BEST | Bare Essentials Of Surface Transfer |
| CSA | Coupled Static Approxn. (in Scattering Calcns.) |
| NOONS | Natural Orbitals Occupation Numbers |
| SCEM | Semiclassical Self-consistent Eikonal Method |
| CHARM | Complex Hazardous Air Release Model |
| MIP | Macrophage Inflammatory Protein |
| ASBF | Aerated Submerged Biological Filter |