| Acronym | Meaning |
| STS | Scanning Tunnelling Spectroscopy |
| LOC | Level Of Concern |
| SXRD | Surface X-ray Diffraction |
| DCN | Document Change Notice |
| MIPS | Munich Information Center For Protein Sequences |
| AUSST | Automatic Synthesis Of Symptom Tree Model |
| RAS | Routine Analytical Services |
| ICM | Intracluster Medium |
| FOND PT | Finite-order Nondegenerate Perturbation Theory |
| ACC | 1-aminocyclopropane-1-carboxylic Acid |