| Acronym | Meaning |
| QPM | Quantum Proximity Microscopy |
| RAM | Reference-system Average Mayer-function (in Perturbation Theory) |
| MHC | Major Histocompatibility Complex |
| SRE | Serum-responsive Element |
| IDCNS | Interdivisional Committee On Nomenclature And Symbols |
| PEM | Photoelectron Microscopy |
| LEF | Large-amplitude Elec. Field Fluctuations |
| IMAPS | Interstellar Medium Absorption Profile Spectrograph |
| PDECD | Pulsed Discharge Electron Capture Detector |
| EDB | Ethylene Dibromide |