Definition of "megavoltage" []

• A voltage in the region of millions of volts. (noun)

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• "External X-ray megavoltage beam irradiation is quite often indicated in view of the closeness of the surgical margin of resection."
• "However, megavoltage imaging also has significant disadvantages."
• "According to Star-Lack, it is possible to greatly reduce the distortions by using very high energy (megavoltage) x-rays that better penetrate the metal."