| Acronym | Meaning |
| COHSEX | Coulomb-hole (plus) Screened-exchange (approxn. In Band-structure Calcns.) |
| RFD | Reference Dose |
| LOA | Linear Optical Amplifier |
| SAMA | Scientific Apparatus Makers Association |
| IOC | Intergovernmental Oceanographic Commission |
| RCA | Ricinus Communis Agglutinin |
| RAS | Renin-angiotensin System |
| CSHO | Compliance Safety & Health Officer |
| NHEJ | Nonhomologous End Joining |
| MSD | Mean Square Displacement |