tokamak

noun

to·​ka·​mak ˈtō-kə-ˌmak  ˈtä- 

variants or less commonly tokomak

: 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

Examples of tokamak in a Sentence

Recent Examples on the Web

The result is that the largest tokamak weighs in at 23,000 tonnes and is still a long way from being practical. —David Szondy may 10, New Atlas, 10 May 2025

Thus far, the scientific conventional wisdom has been the bigger the tokamak, the more powerful its performance. —Ella Nilsen, CNN Money, 6 May 2025

Benj Edwards – 4:30 AM | 36 First tokamak component installed in a commercial fusion plant A tokamak moves forward as two companies advance plans for stellarators. —John Timmer, ArsTechnica, 1 Apr. 2025

The $700 million 100-acre fusion campus in eastern China will also have a new tokamak called BEST that is expected to be finished in 2027. —Katie Tarasov, CNBC, 16 Mar. 2025

Word History

Etymology

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

First Known Use

1965, in the meaning defined above

Rhymes for tokamak

• adamic
• anomic
• atomic
• islamic
• meramec
• anatomic
• antidromic
• astronomic
• autonomic
• cryptogamic
• diatomic
• economic