| Acronym | Meaning |
| OCT | Optimized Cluster Theory |
| SARA | Smad Anchor For Receptor Activation |
| FADD | Fas-associated Death Domain Protein |
| SCCSA | Self-consistent Central-site Approxn. (for D.-of-states) |
| MCE | Multichannel Eikonal (method For Scattering Calcns.) |
| HSC | HAZMAT Spill Center |
| APSIS | Athenian Photochem. Smog Intercomparison Of Simulations |
| CBX | Coulomb-Born Approxn. With Exchange |
| MINDO/SR | MINDO S=overlap Integral R=internuclear Distance |
| PSA | Pressure Sensitive Adhesive |