| Acronym | Meaning |
| GHG | Greenhouse Gases |
| NCPM | Noncritical Phase-matching |
| OEP-SIC | Optimized Effective Potential Self-interaction Correction |
| NVLAP | National Voluntary Laboratory Accreditation Program |
| BLR | Broad Line Region |
| MPLS | Modified Partial Least Squares |
| GSH-PX | Glutathione Peroxidase |
| ASTSWMO | Association Of State And Territorial Solid Waste Management Officials |
| PVB | Projected Valence Bond |
| IWKB | Iterated Wentzel-Kramers-Brillouin |