tokamak

noun
to·​ka·​mak | \ ˈtō-kə-ˌmak How to pronounce tokamak (audio) , ˈtä- How to pronounce tokamak (audio) \
variants: or less commonly tokomak

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

Examples of tokamak in a Sentence

Recent Examples on the Web In 2018, the tokamak reached 180 million degrees Fahrenheit, or about 82 million degrees Celsius. Caroline Delbert, Popular Mechanics, 7 June 2021 Could the future of nuclear fusion be a much smaller, self-sustaining tokamak reactor? Caroline Delbert, Popular Mechanics, 5 Apr. 2021 Where did the compact advanced tokamak design concept come from? Caroline Delbert, Popular Mechanics, 5 Apr. 2021 The tokamak chamber, seen from the top (top) and middle (bottom), is a cylinder that will hold the ITER experiment. Clara Moskowitz, Scientific American, 1 Dec. 2020 Like a tokamak, an MTF reactor involves hot plasma contained by a powerful magnetic field. Caroline Delbert, Popular Mechanics, 25 Jan. 2021 Like many of the world’s tokamak experiments, EAST has reached fusion before. Caroline Delbert, Popular Mechanics, 4 Dec. 2020 But no tokamak has generated more energy from fusion than is used to heat up the plasma. Daniel Clery, Science | AAAS, 2 Dec. 2020 The scientists also replaced the entire exhaust system, which in a tokamak is an especially vulnerable part. Caroline Delbert, Popular Mechanics, 9 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tokamak.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tokamak

1965, in the meaning defined above

History and Etymology for tokamak

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

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Time Traveler for tokamak

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The first known use of tokamak was in 1965

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Dictionary Entries Near tokamak

toitoi

Tōjō

Tojolabal

tokamak

Tokara Islands

Tokay

toke

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Last Updated

15 Jun 2021

Cite this Entry

“Tokamak.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tokamak. Accessed 24 Jun. 2021.

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More from Merriam-Webster on tokamak

Britannica.com: Encyclopedia article about tokamak

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