| Acronym | Meaning |
| MPPT | Moeller-Plesset Perturbation Theory |
| OSRD | Office Of Scientific Research And Development |
| CIBE | Continuous Interfacial Bilayer Electrode |
| PLED | Polymer Light Emitting Diode |
| NTU | Nephelometric Turbidity Unit |
| GMCC | Geophysical Monitoring For Climate Change |
| UNIFAC | Universal Quasichem. Functional Group Activity Coeffs. |
| WIPP | Waste Isolation Pilot Plant (for Nuclear Wastes) |
| STM | Scanning Tunneling Microscopy |
| ESA | Electrostatic Analyzer |