| Acronym | Meaning |
| ITT | Impact Transition Temperature |
| EOM-CC | Equation Of Motion-coupled Cluster |
| CRC | Cooperative Research Council (automotive) |
| EOSDIS | Earth Observing System Data Information System |
| TDC | Top Dead Center |
| NCE | New Chemical Entity |
| NMVOC | Nonmethane Volatile Organic Compound |
| IRI | International Reference Ionosphere |
| TARFOX | Tropospheric Aerosol Radiative Forcing Observation Experiment |
| EQL | Estimated Quantitation Limit |