toroidal

adjective

to·​roi·​dal tȯ-ˈrȯi-dᵊl 

: of, relating to, or shaped like a torus or toroid : doughnut-shaped

a toroidal resistance coil

toroidally

tȯ-ˈrȯi-dᵊl-ē 

adverb

Examples of toroidal in a Sentence

Recent Examples on the Web

Norm First conceived of by Igor Tamm and Andrei Sakharov in the 1950s, tokamaks use a toroidal magnetic field to contain the hydrogen plasma to help keep it at the sun-like pressure and temperature needed to ignite fusion. —David Szondy may 10, New Atlas, 10 May 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

Magnetic confinement uses a toroidal magnetic field that traps and compresses a plasma as it's heated to temperatures many times greater than that at the core of the Sun. —David Szondy, New Atlas, 8 July 2024

The issue seems to be that the antenna does not, as stated, give full spherical coverage, but more of a toroidal or donut shape. —David Hambling, Forbes, 22 Feb. 2024

Each of Sparc’s 18 toroidal field magnets will be built on top of a similar work fixture. —IEEE Spectrum, 15 July 2023

Two types of aerospike engines—toroidal and linear—differ in shape (as their names suggest), but fundamentally work in the same way. —Darren Orf, Popular Mechanics, 3 June 2023

What gravity in a toroidal universe does is to cause the modulus to evolve in time. —Steven Carlip, Scientific American, 1 Dec. 2015

Word History

First Known Use

1881, in the meaning defined above

Rhymes for toroidal

• choroidal
• colloidal
• conchoidal
• crinoidal
• cuboidal
• discoidal
• ethmoidal
• poloidal
• rhomboidal
• sigmoidal
• sphenoidal
• spheroidal