| Acronym | Meaning |
| CA | Cellulose Acetate |
| PAC | Perturbed Angular Correlation |
| QRIOSA | Quantum Reactive Infinite Order Sudden Approxn. |
| RVP | Reid Vapor Pressure (used For Gasoline Volatility) |
| NCPM | Noncritical Phase-matching |
| GOSAT | Greenhouse Gas Observing Satellite |
| DPC | Differential Photocalorimetry |
| MRAM | Magnetic Random Access Memory |
| PWBA-EX | Plane-wave Born Approxn. (with) Exchange |
| ETO | Exponential-type Orbital |