| Acronym | Meaning |
| SDGUGA | Shape-driven Graphical Unitary Group Approach |
| CAFBR | Ceramic Filled Anaerobic Fixed Bed Reactor |
| BLCAO | Bilinear Combination Of Atomic Orbitals |
| PSS | Primary Sewage Sludge |
| GHL | Generalized Heitler-London |
| OCS | Outer Continental Shelf |
| DIIS | Direct Inversion In The Iterative Space |
| GC-MS | Gas Chromatography-mass Spectrometry |
| OTC | Organic Toxic Compound |
| BSDF | Bidirectional Scatter Distribution Function |