| Acronym | Meaning |
| MMDR | Microwave-microwave Double Resonance |
| MAPS | Measurement Of Air Pollution From Satellites |
| NLDFT | Nonlocal Density Functional Theory |
| AIS | Acoustic Imaging System |
| BTCA | Best Technology Currently Available |
| PAEP | Photovoltaic Array Environmental Protection Program |
| MMI | Man-machine Interface |
| HIPS | High Impact Polystyrene |
| NGF | Nerve Growth Factor |
| NAA | Neutron Activation Analysis |