noun. German physicist who discovered x-rays and developed roentgenography (1845-1923).
- Wilhelm Konrad Rontgen
- Wilhelm Konrad Roentgen
noun. a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air.
Sentences with roentgen
Veterinary radiologists sometimes use roentgen rays and radioactive substances to diagnose and treat animals.