| Acronym | Meaning |
| ICM | Intracluster Medium |
| SHEED | Scanning High-energy Electron Diffraction |
| RCA | Ricinus Communis Agglutinin |
| SHRS | Stimulated Hyper Raman Scattering |
| IEEM | Ion-electron Emission Microscopy |
| OAO | Orthogonalized Atomic Orbital |
| VPDB | Vienna Peedee Belemnite |
| COD | Continuous Optical Discharge |
| MSM | Multishell Method |
| AOB | Analytical Operations Branch (OSWER) |