大だい腿たい部ぶだいたいぶMeanings1nounfemoral region; thigh areaanatomyAnatomical term referring to the thigh region. Used in medical or formal contexts.大だい腿たい部ぶの筋きん肉にくを鍛きたえる運うん動どうをしています。I do exercises to strengthen the muscles of the thigh area.