| Acronym | Meaning |
| CRDA | Cooperative Research And Development Agreement |
| TDGI | Time-dependent Gage-invariant (quantum Calcn. Method) |
| STAT | Signal Transducer And Activator Of Transcription |
| MAGW | Momentum-averaged Gaussian-weighted (method In Calcns. Of Electron-momentum Distributions) |
| PDU | Process Development Unit |
| TAPPI | Technical Association Of The Pulp And Paper Industry |
| VPA | Varied Portions Approach |
| VEO | Valence Electron Only |
| DSCCR | Diffractive Sudden-closed Coupled Rotation (for Mol.-surface Scattering Calcns.) |
| SC-MBPT | Single-configuration Many-body Perturbation Theory |