| Acronym | Meaning |
| FFT | Fast Fourier Transform |
| PXR | Pregnane X Receptorpar |
| EOM | Extractable Organic Matter |
| CUTLASS | Co-operative UK Twin-Located Auroral Sounding System |
| SQC | Sediment Quality Criteria |
| C.I. | Color Index |
| PNDDO | Partial Neglect Of Diatomic Differential Overlap |
| CCSDT | Coupled Cluster With Single |
| SMMR | Scanning Multichannel Microwave Radiometer |
| AFBR | Anaerobic Fluidized-bed Reactor |