| Acronym | Meaning |
| OEM | Original Equipment Manufacturer |
| ANS | Autonomic Nervous System |
| ACPTQ | Approx. Coupled Pair (theory Cor. For Connected) Triple And Quadruple Excitations |
| APDC | Ammonium Pyrrolydinedithiocarbamate |
| LISA | Lander For Ion-selective Analysis |
| CSGT | Continuous Set Of Gauge Transformations |
| DEM | Digital Elevation Model |
| MMMF | Man-Made Mineral Fiber |
| IAEA | International Atomic Energy Agency |
| ACIS | Advanced CCD Imaging Spectrometer |