| Acronym | Meaning |
| CILS | Core Ionization Loss Spectroscopy |
| MBS | Minimum Basis Set Wave Function |
| TIA | Transient Ischemic Attack |
| EQPAC | Equatorial Pacific Study |
| PILC | Pillar Interlayered Clays |
| STFT | Short Time Fourier Transform |
| SOLVE | SAGE III Ozone Loss And Validation Experiment |
| FI | Fouling Index |
| OSSA | Office Of Space Science And Applications (NASA) |
| MRA | Magnetic Resonance Angiography |