| Acronym | Meaning |
| GSAM | Generalized Standard Addition Method |
| LPC | Light Paraffin Conversion |
| NOC | Nonionic Organic Contaminants |
| DZD | (double Zeta)-diffuse (basis Set In Configuration-mixing MO Calcns. On Mols.) |
| CIRRUS-1A | Cryogenic IR Radiance Instrumentation For Shuttle |
| GFMT | Green Function Muffin Tin (method In Electronic Structure Study) |
| CPEO | Chronic Progressive External Ophthalmoplegia |
| FC | Frozen Core (approxn. For Electron-atom Scattering Calcns.) |
| TDHG | Time-dependent Hartree Grid (quantum Method) |
| PCF | Plasma Centrifugal Furnace |