noun
spent nuclear fuel
Technical term for nuclear fuel that has been irradiated in a reactor and is no longer efficient for power generation.
使用済み核燃料の再処理は重要な課題だ。
Reprocessing spent nuclear fuel is an important issue.
Standard full spelling.
Abbreviated spelling omitting み; seen in technical contexts.
Compound of 使用済み (used, spent) and 核燃料 (nuclear fuel).