| teletherapy | Radiation therapy administered with the source at a distance from the body. Compare: interstitial therapy. Synonym: teleroentgentherapy. Origin: G. Tele, distant, + therapeia, treatment (05 Mar 2000) |
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| radioisotope teletherapy | A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source encapsulated within a teletherapy unit. (12 Dec 1998) |
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