| Acronym | Meaning |
| ATR-FTIR | Attenuated Total Reflection-Fourier-transform IR Spectroscopy |
| CYCLOPS | Cyclically Ordered Phase Sequence |
| RVCM | Renormalized Virtual-crystal Method (for Electronic Structure) |
| RMS | Root Mean Square |
| FRCA | Fire Retardant Chemicals Association |
| ADMET | Acyclic Diene Metathesis |
| LDC | Liq. Dynamic Compaction |
| IAG | International Association Of Geodesy |
| IHEA | Industrial Health Engineering Association |
| EU | European Union |