| Acronym | Meaning |
| GSJ | Geological Survey Of Japan |
| TICT | Twisted Intramolecular Charge Transfer |
| EQS | Environmental Quality Standard |
| SEE | Standard Error Of Estimate |
| RDF | Restricted Dirac-Fock (quantum Calcn. Method) |
| ECPA | European Crop Protection Association |
| GFFF | Gravitational Field-flow Fractionation |
| NGV | Natural Gas Vehicle |
| FSSW | Friction Super Stir Welding |
| BBS | Bulletin Board System |