roentgen : Idioms & Phrases


roentgen ray

  • noun electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
    X ray; X-radiation; X-ray.
WordNet

wilhelm konrad roentgen

  • noun German physicist who discovered x-rays and developed roentgenography (1845-1923)
    Rontgen; Wilhelm Konrad Rontgen; Roentgen.
WordNet