WordNet
fast reactor
n. nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is used [ant: thermal reactor]
Usage examples of "fast reactor".
After the meal the adults would talk about crops or their Rickover, an old integral fast reactor they were very fond of, or about Earth-while the kids cleaned up and then played music for an hour and then games, as everyone began the slow process of falling asleep.
After the meal the adults would talk about crops or their Rickover, an old integral fast reactor they were very fond of, or about Earth—.