| Acronym | Meaning |
| IPES | Inverse Photoemission Spectroscopy |
| GITR | Glucocorticoid-induced Tumor Necrosis Factor Receptor |
| GHRF | Growth Hormone-releasing Factor |
| NSSS | Nuclear Steam Supply System |
| HARM | Hazardous Atmospheric Release Model |
| ZSR | Zdanovskii-Stokes-Robinson [model] |
| BIPP | Boron Implanted Polysilicon Pad |
| NN-TB | Nearest-neighbor Tight Binding |
| ECGF | Endothelial Cell Growth Factor |
| MCDW | Matrix Continuum Distorted Wave |