| Acronym | Meaning |
| IRDO | Intermediate Retention Of Differential Overlap |
| GISAXS | Grazing Incidence Small Angle X-ray Scattering |
| ZQC | Zero-quantum Coherence |
| MNDO-PM3 | Modified Neglect Of Diatomic Overlap-parametric Method |
| APH | Adiabatically Adjusting |
| UNO | Unrestricted Natural Orbital |
| PFRP | Process To Further Reduce Pathogens |
| HD | Sulfur Mustard |
| CCAP | Climate Change Action Plan |
| CAWAI | Commission On Atomic Weights And Isotope Abundances |