| Acronym | Meaning |
| OSRD | Office Of Scientific Research And Development |
| RIR | Relative Inhalation Risk |
| FTIR | Fourier Transform Infrared Spectroscopy |
| GIAO | Gage Invariant Atomic Orbital |
| HHOB | High-energy Higher-order Born (approxn. For Scattering Calcns.) |
| LFC | Lowest Feasible Concentration |
| RBM | Rigid Band Model |
| CGC | Capillary Gas Chromatography |
| LSIRD | Lunar Scout Infrared Detector |
| LSF | Laser-saturated Fluorescence |