遊ゆう走そう腎じんゆうそうじんMeanings1nounfloating kidney; wandering kidney; nephroptosismedicine›Medical term for a kidney that is abnormally mobile and descends more than usual when standing. The English term 'floating kidney' is the most common lay term, while 'nephroptosis' is the formal medical term.遊ゆう走そう腎じんは、立た