レントゲン rentogen X-ray JLPT N1 noun Common word Other meanings 2. roentgen (unit of ionizing radiation) The kanji in this word This word is written in kana only. In this level レンジ 連日 連帯 レンタカー 連中 連邦 連盟 老衰 朗読 浪費 Back to the JLPT N1 list Practise these words