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Noun: Gy
  1. The SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one grey equals 100 rad
    - gray [US], grey [Brit, Cdn]

Type of: radioactivity unit

Encyclopedia: Gy, Ch Gy Gy, Switzerland Gy, Haute-Saône Gy, Haute-Saone

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