| Acronym | Meaning |
| NDP | Net Driving Pressure (in Membrane Reverse Osmosis) |
| ODUS | Ozone Dynamics UV Spectrometer |
| NRC | National Research Council |
| LOA | Linear Optical Amplifier |
| SPT | Standard Penetration Test |
| NEMCA | Non-faradaic Electrochemical Modification Of Catalytic Activity |
| CEBAF | Continuous Electron Beam Accelerator Facility |
| USDI | US Department Of Interior |
| VCC | Variable Curvature Coordinates (in Calcns. On Mol. Vibrations) |
| ITCZ | Intertropical Convergence Zone (of Seawater) |