| Acronym | Meaning |
| PDF | Probability Density Function |
| ODCPA | Off-diagonal (disorder) Coherent-potential Approxn. |
| CCI | Chronic Constriction Injury |
| PMC | Percent Modern Carbon |
| ACD | Allergic Contact Dermatitis |
| ECCI | Electron Channeling Contrast Imaging |
| AIMP | Ab Initio Model Potential (for Valence-electron Mol. Calcns.) |
| OPIM | Other Potential Infectious Material |
| PIAS | Photon-counting Image Acquisition System |
| CEUG | Continental Epeirogenic Uplift Granitoids |