| Acronym | Meaning |
| ZAP | Zone Axis Pattern |
| ULPA | Ultra Low Penetration Air |
| EGS | Echelle Grating Spectrometer |
| EDZ | Emission Density Zoning |
| PWBA-R | Plane-wave Born Approxn. With Relativistic Effects |
| BPC | Bonded-phase Chromatography |
| CPV | Cytoplasmic Polyhedrosis Virus |
| GCEC | Global Change And Ecological Complexity |
| DHF | Decoupled Hartree-Fock |
| EXAFS | Extended X-ray Absorption Fine Structure |