| Acronym | Meaning |
| CHIGFET | Complementary Heterostructure Insulated Gate Field Effect Transistor |
| CRC | Cooperative Research Council (automotive) |
| CC-CI | Cluster Corrected-configuration Interaction |
| UHE | Ultra-high Energy |
| IRIS | Incorporated Research Institutes For Seismology |
| HSK | Hylleraas Scherr Knight (variational Perturbation Procedure) |
| PPN | Peroxypropionyl Nitrate |
| QCD | Quantum Chromodynamics |
| ARDEC | Armament Research |
| AMR | Anisotropic Magnetoresistance |