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'Roentgen'

Overview of noun roentgen

(no senses from tagged texts)

1. roentgen, R -- (a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air)

2. Roentgen, Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgen -- (German physicist who discovered x-rays and developed roentgenography (1845-1923))



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