| Acronym | Meaning |
| PDPA | Phase Doppler Particle Analyzer |
| NO | Natural Orbital |
| RIP | Rapid Isothermal Processing |
| TOTE | Tropical Ozone Transport Experiment |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| MNDOD | Modified Neglect Of Diatomic Overlap With D At. Orbitals |
| EBT | Eccentric Bottom Tapping |
| MIKE | Mass-analyzed Ion Kinetic Energy (spectrometry) |
| LHRH | Luteinizing Hormone-releasing Hormone |
| CCGT | Combined Cycle Gas Turbine |