| Acronym | Meaning |
| IMA | Ion Microanalysis |
| SPICE | Simulation Program With Integral Circuit Emphasis |
| FLMTO | Film Linearized Muffin-tin Orbital (for Surface Electronic Structure Calcns.) |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| OSCC | Oral Squamous Cell Carcinoma |
| OPIA | Optical Precision Instrument Associates |
| EHCO | Extended Hueckel Crystal Orbital |
| OETP | Orbiter Electron Temp. Probe |
| CTD | Conductivity |
| THESEO | Third European Stratospheric Experiment On Ozone |