| Acronym | Meaning |
| ICP/MS | Inductively Coupled Plasma Mass Spectrometry |
| OCT | Optimized Cluster Theory |
| ECBM | Enhanced Coalbed Methane (recovery) |
| IRMM | Institute For Reference Materials And Measurements |
| PWHT | Post-weld Heat Treatment |
| LEISS | Low-energy Ion-scattering Spectroscopy |
| SOIC | Small Outline Integrated Circuit |
| LTER | Long Term Ecological Research |
| ECSTM | Electrochemical Scanning Tunneling Microscopy |
| HRT | Hormone Replacement Therapy |