トロッコ問もん題だいトロッコもんだいMeanings1nountrolley problemA well-known ethical thought experiment about choosing whether to sacrifice one person to save several others. Used in philosophy and psychology discussions.倫りん理りの授じゅ業ぎょうでトロッコ問もん題だいについて議ぎ論ろんした。We discussed the trolley problem in ethics class.