| Acronym | Meaning |
| IEG | Immediate Early Gene |
| BAPMON | Background Air Pollution Monitoring Network |
| TFR | Thin Film Resonator |
| TIP | Total Isomerization Process |
| FFS | Flame Fluorescence Spectroscopy |
| METAALICUS | Mercury Experiment To Assess Atmospheric Loading In Canada And The US |
| BXE | Bombardment-induced X-ray Emission |
| RXTE | Rossi X-ray Timing Explorer |
| FAMA | Fluorescent Antibody Membrane Antigen |
| CART | Classification And Regression Tree (method In Statistical Analysis) |