| Acronym | Meaning |
| BDST | Bed-depth Service Time |
| N-BOD | Nitrogenous Biochemical Oxygen Demand |
| MESA | Mass Concentration Extinction Size Analyzer |
| WDXRF | Wavelength Dispersive X-Ray Fluorescence |
| ISGO | International Structural Genomics Organization |
| ECMRA | European Chemical Market Research Association |
| MCP | Microchannel Plate |
| PNH | Paroxysmal Nocturnal Hemoglobinuria |
| PNO-CEPA | Pseudonatural Orbital-coupled Electron Pair Approximation |
| APO B | Apolipoprotein B |