| Acronym | Meaning |
| FIMS | Field Ionization Mass Spectrometry |
| DVMO | Directed-valence Molecular Orbital |
| NSCEP | National Service Center For Environmental Publications |
| TDEMSE | Time-dependent Effective Mass Schroedinger Equation |
| HGTF | Hermite Gaussian-type Function |
| CEC | Commission Of The European Communities |
| HMTUSA | Hazardous Materials Transportation Uniform Safety Act |
| SCRP | Spin Correlated Radical Pairs |
| ADAM | A Disintegrin And Metalloprotease Domain |
| USBM | US Bureau Of Mines |