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English Dictionary

tokamak  (ˈtɒkəˌmæk



  1. (physics) a toroidal reactor used in thermonuclear experiments, in which a strong helical magnetic field keeps the plasma from contacting the external walls. The magnetic field is produced partly by current-carrying coils and partly by a large inductively driven current through the plasma

Word Origin

C20: from Russian to( roidál'naya) kám( era s) ak( siál'nym magnitnym pólem), toroidal chamber with magnetic field


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