| Acronym | Meaning |
| AQIRP | Auto/Oil Air Quality Improvement Research Program |
| MASER | Microwave Amplification By Stimulated Emission Of Radiation |
| CO | Crystal Orbital |
| CDRH | Center For Devices And Radiological Health |
| PICT | Pollution-induced Community Tolerance |
| MCE | Microchannel Epitaxy |
| FXR | Farnesoid X Receptor |
| LVM-ST | Least-squares Variational Method (involving Only) Square-integrable (test Functions) (for Wave Functions In Scattering) |
| MDR | Multidrug Resistance |
| EBHT | Electron Beam Hardening Treatment |