| Acronym | Meaning |
| ADAF | Advection-dominated Accretion Flow |
| WAP | Wireless Application Protocol |
| FIM | Field-Ion Microscopy |
| ASTEX | Atlantic Stratus Transition Experiment |
| ASCREV | Anodic Stripping Continuous Recall Enhancement Voltammetry |
| IAM | Internal Axis Method (in Calcns. Of Rotational Excitation In Atom-mol. Collisions) |
| EEM | Episodic Event Model (of Acidification) |
| SSB | Semiclassical Sudden Born (approxn. In Ion-atom Collisions) |
| VIM | Vacuum Induction Melting |
| NPOESS | National Polar Orbiting Environmental Satellite System |