| Acronym | Meaning |
| LMTO | Linear Muffin-tin Orbital |
| D5W | Dextrose 5% In Water |
| NOMS | National Organics Monitoring Survey (US EPA 1976-1977) |
| COLOC | Correlation Spectroscopy For Long-range Couplings |
| NMO | Natural Magnetic Orbital |
| CARIBIC | Civil Aircraft For Remote Sensing And In Situ Measurements In Troposphere And Lower Stratosphere Based On The Instrumentation |
| HON | Hazardous Organic NESHAP |
| HELC | High Efficiency Liquid Chromatography (Russian |
| LAPW | Linearized Augmented Plane Wave (for Band-structure Calcns.) |
| LSDX | Local-spin-density (with Exact) Exchange |