Definition of tokamak
: a toroidal device for producing controlled nuclear fusion that involves the confining and heating of a gaseous plasma by means of an electric current and magnetic field
Variants of tokamak
Origin of tokamak
Russian, from toroidal'naya kamera s aksial'nym magnitnym polem (toroidal chamber with an axial magnetic field)
First Known Use: 1965
Rhymes with tokamak
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Learn More about tokamak
Britannica.com: Encyclopedia article about "tokamak"
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