| Acronym | Meaning |
| NOHS | National Occupational Hazard Survey |
| BOO | Bond Orientational Order |
| ACFB | Atmospheric Circulating Fluidized Bed |
| PIRAS | Polarized Infrared Absorption Spectroscopy |
| TDDFT | Time-dependent Density-functional Theory |
| NEBOSH | National Examination Board In Occupational Safety And Health |
| PO-MO | Pars Orbital-MO |
| OSRHF | Open-shell Restricted-Hartree-Fock |
| ITRC | Interstate Technology And Regulatory Cooperation Working Group |
| TDH | Time-dependent Hartree Theory |