| Acronym | Meaning |
| APT | Analytic Perturbation Theory |
| SPIO | Superparamagnetic Iron Oxide |
| ASTER | Acceptable Short-term Exposure Range |
| TIC | Total Ion Current |
| ESC | Embryonic Stem Cell |
| AEOS | Advanced Electro-Optical System |
| ESIS | European Structural Integrity Society |
| CIM | Ceramic Injection Molding |
| RIGS | Radioimmunoguided Surgery |
| EOSP | Earth Observing Scanning Polarimeter |