| Acronym | Meaning |
| INSPEC | Information Service For Physics And Engineering Communities |
| MMEF | Maximum Mid-expiratory Flow (lung Function) |
| PAK | P21-Activated Kinase |
| HNS | Explosive |
| HAL | Health Advisory Level |
| TIC | Total Ion Current |
| RTCDW | Relativistic Target Continuum Distorted Wave (approxn. For Electron Capture In Ion-atom Collisions) |
| CGTO | Combination Of Gaussian Type Orbitals |
| PELMO | Pesticide Leaching Model |
| AEFCA | All-electron Frozen-core Approximation |