Word.ws English Dictionary

tokamak

Syllables: to·ka·mak/ˈtəʊkəmæk/US/ˈtoʊkəmæk/

tokamak noun: a torus-shaped chamber used in nuclear fusion research in which plasma is magnetically confined.

Noun

tokamak (plural tokamaks)

  1. (nuclear physics) A torus-shaped chamber used in nuclear fusion research in which plasma is magnetically confined.
    • Studies of electrodeless discharges in a strong longitudinal magnetic field, carried out on the stellarator and the "Tokamak", have shown that in such systems the plasma becomes unstable for currents appreciably les than the critical current of Shafranov-Kruskal.1963 November, E. P. Gorbunov, K. A. Razumova, “The Effect of a Strong Magnetic Field on the Magnetohydrodynamic Stability of Plasma and the Containment of Charged Particles in the ‘Tokamak’”, in...
    • A Tokamak engineering test reactor (TETR) will be an important component of any national or international program to achieve viable Tokamak fusion power reactors.1975, J. W. Lue, R. W. Conn, “Superconducting Toroidal Field Magnets for a Tokamak Engineering Test Reactor”, in K. D. Timmerhaus, D. H. Weitzel, editors, Advances in Cryogenic Engineering, volume...

Examples of tokamak in a sentence

  • Of magnetic fusion experiments, those in Tokamaks are closest to achieving the combination of confinement conditions needed for a reactor.1982, “Controlled Nuclear Fusion”, in Energy in Transition 1985–2010: Final Report of the Committee on Nuclear and Alternative Energy...
  • Slowly, the solenoid—all one thousand tons of it—will be carried to the tokamak and lowered into the center of the vacuum chamber.2014 March 3, Raffi Khatchadourian, “A Star in a Bottle: An Audacious Plan to Create a New Energy Source could Save the Planet from...

Forms of tokamak

pluraltokamaks
alternative formtokomak

Origin of tokamak

Borrowed from Russian токама́к (tokamák), an acronym of то(роида́льная) ка́(мера) (с) ма(гни́тными) к(ату́шками) (to(roidálʹnaja) ká(mera) (s) ma(gnítnymi) k(atúškami), “toroidal chamber with magnetic coils”).

Words formed from tokamak

Questions about tokamak

What does tokamak mean?
Tokamak means a torus-shaped chamber used in nuclear fusion research in which plasma is magnetically confined.
How do you use tokamak in a sentence?
Of magnetic fusion experiments, those in Tokamaks are closest to achieving the combination of confinement conditions needed for a reactor.
What part of speech is tokamak?
Tokamak is a noun.
How do you pronounce tokamak?
Tokamak is pronounced /ˈtəʊkəmæk/ (UK).
What is the plural of tokamak?
The plural of tokamak is tokamaks.

Words near tokamak in the dictionary

  1. Tok Pisin
  2. Tokachi
  3. Tokaj
  4. tokaji
  5. tokajis
  6. tokamak
  7. tokamaks
  8. Tokanui
  9. Tokar
  10. Tokara horse
  11. Tokara Islands

Source and license

Adapted from Wiktionary: tokamak (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-tokamak.wav.

Cite this entry: “tokamak.” Word.ws, https://word.ws/tokamak. Based on Wiktionary, CC BY-SA 4.0.