Roentgen (noun)

A unit of measurement for ionizing radiation, used especially to measure X-rays.

Origin:

Named after the german physicist wilhelm conrad röntgen (1845-1923), who discovered x-rays.

Examples:

1. The patient received several roentgens of X-rays during the diagnostic procedure.
2. The dose of radiation in the room was measured in roentgens to determine its safety.
3. Some medical procedures may require exposure to high doses of roentgens to be effective.
4. The roentgen is a standard unit of measurement for ionizing radiation in many countries.
5. The roentgen was named after the physicist who discovered X-rays, Wilhelm Conrad Röntgen.