| Acronym | Meaning |
| SCM | Self-consistent Multipolar (method In Metal Cluster Calcns.) |
| ORAC | Oxygen Radical Absorbance Capacity |
| TBW | Total Body Water |
| MR-MBPT | Multireference-many-body Perturbation Theory |
| APH | Adiabatically Adjusting |
| IMO | International Maritime Organization |
| DMA | Direct Multicomponent Analysis |
| DSPEC | Dye-sensitized Photoelectrochemical |
| BGC | Biogeochemical Cycling |
| EAP | Electroactive Polymer |