Roentgen
Noun
1.
roentgen
- a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
R
radioactivity unit
- a measure of radioactivity
2.
Roentgen
- German physicist who discovered x-rays and developed roentgenography (1845-1923)
Rontgen
,
Wilhelm Konrad Roentgen
,
Wilhelm Konrad Rontgen
physicist
- a scientist trained in physics
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