| NOUN | quantity | roentgen, R | a unit of radiation exposure |
|---|---|---|---|
| person | Roentgen, Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgen | German physicist who discovered x-rays and developed roentgenography (1845-1923) |
| Meaning | A unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air. | |
|---|---|---|
| Synonym | R | |
| Broader | radioactivity unit | A measure of radioactivity |
| Spanish | roentgen | |
| Catalan | roentgen | |
| Meaning | German physicist who discovered x-rays and developed roentgenography (1845-1923). | |
|---|---|---|
| Synonyms | Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgen | |
| Instance of | physicist | A scientist trained in physics |
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