| Acronym | Meaning |
| PAO | Polyphosphate Accumulating Organism |
| CVA | Canonical Variate Analysis |
| SMSO | Spinor Molecular Symmetry Orbital |
| TSO | Time Sharing Option |
| SSC | Superconducting Super Collider |
| BICFET | Bipolar Inversion Channel Field-effect Transistor |
| CITAC | Cooperation On International Traceability And Analytical Chemistry |
| SMOC | Standard Mean Ocean Chloride |
| AEC | Acceptable Effluent Concentration |
| MCCEM | Multi-chamber Concentration And Exposure Model |