| Acronym | Meaning |
| EELS | Electron Energy Loss Spectroscopy |
| ISCN | International System For Human Cytogenetic Nomenclature |
| CRQL | Contract Required Quantitation Limit |
| EDRAW | Erasable Digital Read After Write |
| APUHF | Approximately Projected Unrestricted Hartree-Fock |
| LSE | Liquid/solid Extraction |
| GICS | Grants Information And Control System |
| ECLSS | Environmental Control And Life Support System |
| ISO | IR Space Observatory |
| PDFT | Perturbation Density-functional Theory |