toroidal

adjective

to·​roi·​dal tȯ-ˈrȯi-dᵊl How to pronounce toroidal (audio)
: of, relating to, or shaped like a torus or toroid : doughnut-shaped
a toroidal resistance coil
toroidally adverb

Examples of toroidal in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This structure surrounds the superconducting magnet at the center of the fusion machine, which also utilizes toroidal field coils, poloidal field coils, and correction coils. Aman Tripathi, Interesting Engineering, 29 Apr. 2026 Commonwealth has demonstrated some success: The company’s toroidal field magnet technology was validated by the Department of Energy in September 2025. Adam Kovac, Scientific American, 28 Apr. 2026 Power Without Corruption Mission has used a high-quality and ultra-low-noise toroidal transformer for 778CDT’s internal power architecture, which isolates critical pathways. Mark Sparrow, Forbes.com, 22 Jan. 2026 The tokamak—shortened from toroidal chamber magnetic—uses powerful magnets. Jordan Blum, Fortune, 2 Oct. 2025 The magnetic field might be shaped like a spiral (called helical) or doughnut shaped (called toroidal). Laura Baisas, Popular Science, 13 Aug. 2025 The clever bit is that this sets up toroidal currents in the plasma. David Szondy may 10, New Atlas, 10 May 2025 Outside the shell, 16 electromagnets composed of circular copper coils generate the toroidal part of the magnetic field. IEEE Spectrum, 28 Oct. 2024

Word History

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of toroidal was in 1881

Browse Nearby Words

Cite this Entry

“Toroidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/toroidal. Accessed 15 May. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster