| Acronym | Meaning |
| ELF | Extremely Low Frequency |
| RAPJ | Rotating Arc Plasma Jet |
| NNI | National Nanotechnology Initiative |
| REX | Relativistically Parametrized Extended Hueckel |
| LFA | Long-chain Fatty Acid(s) |
| PAPP-A | Pregnancy-associated Plasma Protein A |
| RAG | Risk Assessment Guideline |
| ROMP | Ring-opening Metathesis Polymerization |
| SDW | Spin Density Wave |
| CASS | Computer Assisted Stratification And Sampling |