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supervoltage
supervoltage n. 
/ˈsjuːpəˌvəʊltɪdʒ/,
Brit. /ˈsuːpəˌvəʊltɪdʒ/
, /ˈsuːpəˌvəʊltɪdʒ//ˈsjuːpəˌvəʊltɪdʒ/U.S. /ˈsupərˌvoʊltɪdʒ/
Physics and Medicine a higher than usual voltage; spec. one in excess of about 500 (formerly 200) kilovolts, as used in the generation of therapeutic radiation; frequently attributive; cf. orthovoltage n. at ortho- comb. form 1, megavoltage n./ˈsupərˌvoʊltɪdʒ/ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > voltage > [noun] > higher than usual voltage
high voltage1888
supervoltage1898
overload1904
breakdown voltage1915
overvoltage1921
the world > health and disease > healing > medical treatment > treatment by radiation > [noun] > voltage
supervoltage1934
megavoltage1955
orthovoltage1958
the world > matter > physics > atomic nucleus > radioactivity > X-rays > [noun] > higher than usual voltage
supervoltage1934
the world > health and disease > healing > medical treatment > treatment by radiation > [adjective] > voltage
supervoltage1976
1898 Jrnl. Inst. Electr. Engineers 27 416 These include meter losses and discrepancies, and if the consumers' meters are ampere-meters, the loss includes any super voltage with which you may be favouring your consumers.
1934 Illinois Med. Jrnl. 66 286/2 Much of the improvement claimed for super-voltage is available at 200 kilovolts.
1956 A. H. Compton Atomic Quest i. 14 The new physics laboratory..would include space for supervoltage equipment.
1976 Lancet 6 Nov. 992/2 Patients who received T.N.I. were all treated with supervoltage or megacurie equipment.
2001 N.Y. Rev. Bks. 20 Sept. 52/2 By the late 1970s, it had come to be generally accepted that various combinations of chemotherapy, supervoltage X-ray, and minimal surgery..were the proper standard of care.
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