| Acronym | Meaning |
| METOBS | N/A |
| RNG | Renormalization Group |
| CCL | Convective Condensation Level |
| PB | Product Of Polarization And Brightness |
| MSE | Mean Square Error |
| DFD | Data Flow Diagram |
| HSCT | High Speed Civil Transport |
| UEDS | Unidata Experimental Data Service |
| DIA | Direct-interaction Approximation |
| ASE | Amplified Spontaneous Emission |