| Acronym | Meaning |
| ITFW | Improved Thomas-Fermi-Weizaecker (model) |
| CHARM | Coupled Hydrosphere-Atmosphere Research Model |
| BRSV | Bovine Respiratory Syncytial Virus |
| MSMO | Multiple Scattering Molecular Orbital Method (also Known As X(alpha) Scattered-wave) |
| PAPP-A | Pregnancy-associated Plasma Protein A |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| ACWM | Asbestos Containing Waste Material |
| FCC | Flat Collect Circuit (in Solar Cell Array For Spacecraft) |
| POA | Preoptic Area |
| DPA | Differential Pulse Amperometry |