| Acronym | Meaning |
| NPOESS | National Polar Orbiting Environmental Satellite System |
| REDOR | Rotational Echo Double Resonance |
| EHS | Extremely Hazardous Substance |
| HFG | Hartree-Fock-Gopinathan (quantum Theory Or Wave Function) |
| ITFM | Intergovernmental Task Force On Monitoring |
| NORS | National Organics Reconnaissance Survey (US EPA 1974-1975) |
| EHS | Environment |
| ADF | Acid Detergent Fiber |
| NTRM | NIST Traceable Ref. Materials |
| LCW | Liquid Core Waveguide |