| Acronym | Meaning |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| RSW | Resistance Spot Welding |
| NURP | Nationwide Urban Runoff Program (USEPA) |
| FEG | Field Emission Gun |
| LEL | Lower Explosion Limit |
| HEAL | Human Exposure Assessment Location |
| OPW | Orthogonalized Plane Wave |
| SEED | Self Electro-optic Effect Device |
| TEA | Transversely-excited Atmospheric Pressure |
| AA | Assistant Administrator |