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Definition of Dose, absorbed
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Dose, absorbed: In radiology, the absorbed dose is the amount of energy that is deposited in any material by ionizing radiation.
The unit of absorbed dose, the rad, is a measure of energy absorbed per gram of material. An alternative unit of absorbed dose is the gray. One gray equals 100 rads.