| Acronym | Meaning |
| CAFE | Corporate Average Fuel Economy |
| OPANA | Operational Version Of The Atm. Mesoscale Numerical Pollution Model |
| GS | Gelius-Siegbahn (MO Approxn.) |
| DECENT | Distribution Of Exact Classical Energy Transfer Approximation |
| NIA | National Institute On Aging |
| HKS | Hohenberg-Kohn-Sham (quantum Theory) |
| OB/OD | Open Burn/open Detonation |
| FTICR | Fourier Transform Ion Cyclotron Resonance |
| WHSV | Wt. Hourly Space Velocity |
| EOT | Equivalent Oxide Thickness |