| Acronym | Meaning |
| HI | Hinkley Index |
| VLWIR | Very Long Wavelength IR |
| ATPASE | Adenosine Triphosphatase |
| ANSOM | Apertureless Near-field Scanning Optical Microscopy |
| TCS | Target Current Spectroscopy |
| LRCI | Low-rank Configuration Interaction |
| MS-RC(XI) | Multiple Scattering Relativistic Correlated (calcn. Method) |
| ISCCP | International Satellite Cloud Climatology Project |
| ERC | Emissions Reduction Credit |
| PA | Preliminary Assessment |