| Acronym | Meaning |
| ATTF | Air Toxics Task Force |
| FMAFSH | FeO-MgO-Al2O3-Fe2O3-SiO2-H2O System |
| GMQDT | Generalized Multichannel Quantum Defect Theory |
| DIDA | Diisodecyl Adipate |
| FPPA | Federal Plant Pest Act |
| COMARO | Composite Magic-angle Rotation |
| OCD | Overlapping Charge Density (model In Electronic Structure) |
| ISSC | International Subcommission On Stratigraphic Classification |
| KKRZ | Korringa-Kohn-Rostoker-Ziman (in Energy-band Calcns.) |
| HMM | Hidden Markov Model |