| Acronym | Meaning |
| POSSUM | Protein Online Substructure Searching - Ullman Method |
| SSC | Standard Saline Citrate |
| CASSS | California Separation Science Society |
| PSU | Practical Salinity Units |
| ASCO | American Society Of Clinical Oncology |
| ICCA | International Council Of Chemical Associations |
| CSMCS | Carbon Species Methods Comparison Study |
| QCA | Quasichemical Approxn. (in Calcns. On Semiconductors) |
| MAC | Maximum Admissible Concentration |
| MPI | Mass Psychogenic Illness (in Indoor Air Pollution) |