| Acronym | Meaning |
| SONN | Self-organizing Neural Network |
| TPSSIMS | Temperature Programmed Static Secondary Ion Mass Spectrometry |
| PDF | Probability Density Function |
| IDA | International Desalination Association |
| GC | Guanine + Cytosine |
| BMDO | Ballistic Missile Defense Organization |
| MMI | Man-machine Interface |
| PTI | Positive Thermal Ionization (for Mass Spectrometry) |
| CPSS | Coulomb-repulsion Perturbed Stationary State |
| EAS | Exposure Assessments |