| Acronym | Meaning |
| VCC-IOS | Vibrational Close-coupling-(rotational) Infinite-order Sudden (for Inelastic Mol. Collisions Calcns.) |
| QCA | Quasichemical Approxn. (in Calcns. On Semiconductors) |
| TCC | Thermal Contact Cracking |
| LDAR | Leak Detection And Repair |
| VICAR | Visual Colorimeter For Atmospheric Research |
| PDP | Plasma Display Panel |
| PSNO | Pseudonatural Orbital |
| PBSS | Porous Bed Biomass Support System |
| ONWI | Office Of Nuclear Waste Isolation |
| ANOSIM | Analysis Of Similarity |