| Acronym | Meaning |
| WCDF | Worse Case Dilution Factor (in Receiving Water) |
| PBM | Probability-based Matching |
| RAPJ | Rotating Arc Plasma Jet |
| HIAA | Hydroxyindoleacetic Acid |
| LET | Linear Energy Transfer (in Spacecraft Power Systems) |
| PKR | Protein Kinase R |
| MCHF | Multiconfiguration Hartree-Fock |
| EDX | Energy Dispersive X-ray |
| ASMC | Aortic Smooth Muscle Cell |
| SLEEM | Scanning Laser-enhanced Electrochemical Microscopy |