Roentgen - Definition
roentgen
n 1: a unit of radiation exposure; the dose of ionizing
radiation that will produce 1 electrostatic unit of
electricity in 1 cc of dry air [syn: roentgen, R]
2: German physicist who discovered x-rays and developed
roentgenography (1845-1923) [syn: Roentgen, Wilhelm Konrad
Roentgen, Rontgen, Wilhelm Konrad Rontgen]