| Acronym | Meaning |
| ABWR | Advanced Boiling Water Reactor |
| CONCAWE | Conservation Of Clean Air And Water In Western Europe [European Community Organization] |
| RAPIDS | Regional Air Pollutant Inventory Development System |
| ZDDO | Zero Diatomic Differential Overlap |
| EDZ | Emission Density Zoning |
| SCDM | Self-consistent Diagrammatic Method (in Calcn. On Electronic Excitation Transfer) |
| CITE | Chemical Instrumentation Test And Evaluation |
| ESEM | Environmental Scanning Electron Microscopy |
| ACS | Adiabatically Corrected Sudden |
| LCAO CO | Linear Combination Of Atomic Orbitals Crystal Orbital |