| Acronym | Meaning |
 | LEDO | Limited Expansion Of Diatomic Overlap |
 | EDF | Energy Density Functional (theory In Electronic-property Calcn.) |
 | RET | Resonance Energy Transfer |
 | SIRM | Scanning Infrared Microscope |
 | MEUG | Minimum Energy Uncertainty Gaussian (wave Packets) |
 | FIV | Feline Immunodeficiency Virus |
 | EGS | Echelle Grating Spectrometer |
 | BSEM | Back Scattering Electron Microscopy |
 | MGS/TES | Mars Global Surveyor Thermal Emission Spectrometer |
 | AAIP | American Association Of Investigative Pathologists |