| Acronym | Meaning |
| ESO | European Southern Observatory |
| CPP | Chemical Production Processes |
| CFS | Continuous Flow System |
| HEPA | High-efficiency Particulate Air Filter |
| ARMA | Autoregressive-moving Average Stochastic Model |
| ESP | Elimination Of Solvation Procedure |
| EIE | Equilibrium Isotope Effect |
| NPOESS | National Polar Orbiting Environmental Satellite System |
| DRC | Dynamic Reaction Cell |
| AIHA | American Industrial Hygiene Association |