| Acronym | Meaning |
| MAP | Microtubule-associated Protein |
| LSW | Localized Spherical Wave (in Electronic Structure Calcns.) |
| ARDS | Acute Respiratory Distress Syndrome |
| PNO-CI | Pseudonatural Orbital-configuration Interaction |
| ESD | Electron-stimulated Desorption |
| FNA | Fine-needle Aspiration |
| HEV | Hybrid Electric Vehicle |
| SP | Surface Potential |
| CCC | Convergent Close Coupling |
| HAO | Hydrogenic Atomic Orbital |