| Acronym | Meaning |
 | MS | Molecular Spinor |
 | SBA | Second Born Approximation |
 | SA-LCAO | Symmetry-adapted Linear Combination Of Atomic Orbitals |
 | OLPA | Orbital Local Plasma Approxn. (in Stopping Power Calcn. For Ions By Films) |
 | RATM | Renormalized Average T-matrix (for D.-of-states Calcns.) |
 | FFA | Flammable Fabrics Act |
 | TPE | Thermoplastic Polyester Elastomer |
 | RMTA | Rigid Muffin-tin Approxn. |
 | TTP | Thrombotic Thrombocytopenic Purpura |
 | TDSCF | Time-dependent Self-consistent Field |