Atomic Reactor
Nuclear Reactor
noun
If a 原子 is an atom and a 炉 is a furnace, what is a furnace that has atoms? It is an atomic reactor or nuclear reactor.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
原子炉の建設について、政府に忠告をした人もいました。
Some people warned the government against building nuclear reactors.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.