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Meaning & Definition of Rad in English

English

Rad

/ræd/

noun

1. A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material

synonym:
  • rad

2. 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)
synonym:
  • radian,
  • rad