| Acronym | Meaning |
| SF CC | Space-fixed Close-coupled (equation |
| SCLS | Surface Core Level Shift |
| SPEED | Selective Potentiostatic Etching By Electrolytic Dissolution |
| TIC | Total Inorganic Carbon |
| COG | Coke-oven Gas |
| HCN | US Historical Climatology Network |
| MLD | Metachromatic Leukodystrophy |
| IRMS | Isotope Ratio Mass Spectrometry |
| EBM | Electron Beam Machining |
| IOC-OMEGA | Inclusion Of Overlap Charges In Omega Technique |