| Acronym | Meaning |
| BLCAO | Bilinear Combination Of Atomic Orbitals |
| GIMS | Grazing Incidence Moessbauer Spectroscopy |
| CCB | Calcium Channel Blocker |
| HEIS | High Energy Ion Scattering |
| RCP | Reciprocal Calcn. Procedure [of ACGIH] |
| DWES | Distorted-wave Energy Sudden (for Inelastic Mol. Collisions) |
| SPIO | Superparamagnetic Iron Oxide |
| CIOS | Complex Infinite Order Sudden (approxn. In Quantum Calcns.) |
| NVM | Non-volatile Memory |
| DODCI | 3,3'-Diethyloxadicarbocyanine Iodide |