| Subject | Czech | English |
| construct. | atomový reaktor | nuclear reactor |
| environ. | bezpečnost reaktoru | reactor safety Those studies and activities that seek to minimise the risk of a nuclear reactor accident |
| econ. | chladicí systém reaktoru | reactor cooling system |
| econ. | jaderný reaktor | nuclear reactor |
| nucl.phys., nucl.pow. | lehkovodní reaktor | light-water moderated reactor |
| nucl.phys., nucl.pow. | lehkovodní reaktor | light water reactor |
| nucl.phys. | lehkovodní varný reaktor | boiling water reactor |
| R&D., nucl.phys. | Mezinárodní termonukleární experimentální reaktor | international thermonuclear experimental reactor |
| econ. | množivý reaktor | breeder reactor |
| environ. | plášť reaktoru jaderného ochranný | containment The reinforced steel or concrete vessel that encloses a nuclear reactor. It is designed to withstand minor explosions in the core, to keep radionuclides from escaping into the environment, and to be safe against terrorist attack; nuclear industry |
| R&D., nucl.phys., nucl.pow. | reaktor HFR | high-flux reactor |
| R&D., nucl.phys., nucl.pow. | reaktor HFR | HFR reactor |
| environ. | reaktor jaderný | nuclear reactor Device which creates heat and energy by starting and controlling atomic fission |
| environ. | reaktor rychlý | fast reactor Nuclear reactor which produces more fissile material than it consumes, using fast-moving neutrons and making plutonium-239 from uranium-238, thereby increasing the reactor's efficiency |
| chem. | reaktor s pevným ložem | fixed-bed reactor |
| nucl.phys., nucl.pow. | reaktor s rychlými neutrony | fast reactor |
| nucl.phys., nucl.pow. | reaktor s rychlými neutrony | fast neutron reactor |
| R&D., nucl.phys., nucl.pow. | reaktor s vysokým tokem neutronů | high-flux reactor |
| R&D., nucl.phys., nucl.pow. | reaktor s vysokým tokem neutronů | HFR reactor |
| chem. | reaktor se skrápěným ložem | trickle-bed reactor |
| environ. | roztavení jádra reaktoru | core meltdown An accidental overheating of the part of the nuclear reactor where fission takes place, causing fuel elements and other parts of the reactor to melt, potentially leading to catastrophic consequences in which dangerous levels of radioactive materials would be released into the environment |
| gen. | roztavení jádra reaktoru | core meltdown |
| nucl.phys., nucl.pow. | rychlý reaktor | fast reactor |
| nucl.phys., nucl.pow. | rychlý reaktor | fast neutron reactor |
| nucl.phys. | tlakovodní reaktor | pressurised-water reactor |
| energ.ind., nucl.phys. | tlaková nádoba reaktoru | reactor pressure vessel |
| nucl.phys. | těžkovodní reaktor | heavy-water reactor |