| Acronym | Meaning |
| PAC | Powdered Activated Carbon |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| ATF | Automatic Transmission Fluid |
| NAMS | Neutron Activation Mass Spectrometry |
| MARG | Microarray Research Group |
| OECD | Organization For Economic Cooperation And Development |
| EXSY | Exchange Spectroscopy |
| NEO | Near-Earth Objects |
| LCF | Low-cycle Fatigue |
| HARM | Hazardous Atmospheric Release Model |