noun to·ka·mak \ˈtō-kə-ˌmak, ˈtä-\

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

to·ka·mak also to·ko·mak \ˈtō-kə-ˌmak, ˈtä-\

Origin of TOKAMAK

Russian, from toroidal'naya kamera s aksial'nym magnitnym polem (toroidal chamber with an axial magnetic field)
First Known Use: 1965


Next Word in the Dictionary: TokayPrevious Word in the Dictionary: TojolabalAll Words Near: tokamak
April 02, 2015
capricious Hear it
impulsive or unpredictable
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears