| Subject | Slovak | English |
| environ. | jadrový reaktor | nuclear reactor Device which creates heat and energy by starting and controlling atomic fission |
| econ. | jadrový reaktor | nuclear reactor |
| R&D., nucl.phys. | medzinárodný termonukleárny experimentálny reaktor | international thermonuclear experimental reactor |
| econ. | množivý reaktor | breeder reactor |
| health., anim.husb. | ojedinelý reaktor | singleton reactor |
| chem. | reaktor s kropeným lôžkom | trickle-bed reactor |
| chem. | reaktor s pevným lôžkom | fixed-bed reactor |
| R&D., nucl.phys., nucl.pow. | reaktor s vysokým tokom neutrónov | high-flux reactor |
| R&D., nucl.phys., nucl.pow. | reaktor s vysokým tokom neutrónov | HFR reactor |
| chem. | reaktor zaradený za kolónou | post-column reactor |
| environ. | rýchly reaktor | 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 |