| Acronym | Meaning |
| HEMT | High Electron Mobility Transistor |
| CSVC | Computer System Validation Committee |
| MEPAS | Multimedia Environmental Pollution Assessment System |
| IBS | Ion Backscattering Spectroscopy |
| MFI | Melt Flow Index [of Polymer] |
| HGMS | High Gradient Magnetic Separation (for Water Treatment) |
| VDI | Verein Deutscher Ingenieure (German Engineers Society) |
| MAE | Microalloying Elements |
| HEAT | High-Energy Antimatter Telescope |
| PDF | Probability-distribution Function |