HyperDic is a hyper-dictionary based on WordNet 2.1. This version links 147,249 word forms.
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| NOUN | 1 | roentgen, R | A unit of radiation exposure |
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| 2 | 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. |
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| Synonyms | R |
| Broader | radioactivity unit |
| Meaning | German physicist who discovered x-rays and developed roentgenography (1845-1923). |
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| Synonyms | Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgen |
| Instance of | physicist |
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