English dictionary
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English noun: rad | |||
| 1. | rad (quantity) a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material | ||
| Broader (hypernym) | radioactivity unit | ||
| 2. | rad (quantity) the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees) | ||
| Synonyms | radian | ||
| Broader (hypernym) | angular unit | ||
| Part holonym | milliradian | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk