roentgen ray

Found in Anh - Anh (Wordnet)

Definition Noun : 1. Electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target : This refers to a form of high-energy, invisible radiation capable of penetrating many materials. It is synonymous with "X-ray." Usage The term "roentgen ray" is a historical name, honoring Wilhelm Röntgen, the physicist who discovered them. In modern contexts, "X-ray" is...