| Acronym | Meaning |
| MPR | Maximum Permissible Risk |
| EMA | Effective Mass Approxn. (for Impurity Energy Levels) |
| F/M | Food To Microorganism Ratio |
| RRIM | Reinforced Reaction-injection Molding |
| TDP | Total Dissolved Phosphorus |
| ERAST | Environmental Research Aircraft And Science Technology |
| HFET | Heterostructure Field Effect Transistor |
| APS | Appearance Potential Spectroscopy |
| CCM | Crucible Ceramic Mold |
| PESIS | Photoelectron Spectroscopy Of The Inner Shell |