| Acronym | Meaning |
| MTB | Mycobacterium Tuberculosis |
| ICM | Intracluster Medium |
| MDS | Matrix-diagonalization Sudden Approximation (for Atom Surface Scattering Calcns.) |
| HT-EOVC | High-temperature Engine Oil Viscosity Classification |
| ALIAS | Aircraft Laser Infrared Absorption Spectrometer |
| SEI | Secondary Electron Imaging |
| COOP | Crystal Orbital Overlap Population |
| ALRSS | Advanced Land Remote Sensing System |
| TPO | Thermoplastic Polyolefin |
| BTCC | Biological Threat Characterization Centerpar |