| Acronym | Meaning |
| EMEP | European Monitoring And Evaluation Program |
| PCMCIA | Personal Computer Memory Card International Association |
| RGC | Retinal Ganglion Cell |
| PEM | Proton Exchange Membrane |
| ZID | Zone Of Initial Dilution |
| GEOS | General Earthquake Observation System |
| NELAP | National Environmental Laboratory Accreditation Program |
| LEEPS | Low Energy Electron Point Source |
| AMS | Alpha Methyl Styrene |
| EPR | Electron Paramagnetic Resonance |