| Acronym | Meaning |
| APPH | Auger Peak To Peak Height |
| MWCO | Molecular Weight Cut-off (in Membrane |
| IZA | International Zeolite Association |
| LSR | Lanthanide Shift Reagent |
| MESA | Mesoscale Self-assembly |
| ARDS | Adult Respiratory Distress Syndrome |
| IGF | Irreducible Green Function |
| RNR | Ribonucleotide Reductase |
| STAD | Simple Town Air Dispersion Model (of Air Pollution) |
| EC | Enzyme Commission |