レントゲン Common word JLPT N1 LinksSentence search for レントゲンEdit in JMdict Noun1. X-rayAbbreviation, See also レントゲン線このあいだこの間、はいしゃ歯医者い行ったら、ねん念のためとかい言われて、はがた歯型とレントゲンをとられた。いいしょうばい商売してるよ。I went to the dentist recently and he did a cast of my teeth and took an X-ray, just in case. It sounds like a good business to be in.Noun2. roentgen (unit of ionizing radiation) Discussions Log in to talk about this word.