toroid

American

[tawr-oid, tohr-] / ˈtɔr ɔɪd, ˈtoʊr- /

noun

Geometry.

a surface generated by the revolution of any closed plane curve or contour about an axis lying in its plane.
the solid enclosed by such a surface.

toroid British

/ ˈtɔːrɔɪd /

noun

geometry a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
the solid enclosed by such a surface See also torus

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

toroid Scientific

/ tôr′oid′ /

A surface generated by rotating a closed curve about an axis that is in the same plane as the curve but does not intersect it.

Other Word Forms

toroidal adjective

Etymology

Origin of toroid

First recorded in 1895–1900; tor(us) + -oid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It also highlights that in the case of materials that are prone to supramolecular polymorphism, such as the toroid and random coil, it is essential to purify the assemblies before analyzing their photophysical properties.

From Science Daily • Feb. 13, 2024

The field inside a toroid is very strong but circular.

From Textbooks • Aug. 12, 2015

But the charged particles do not cross field lines and escape the toroid.

From Textbooks • Aug. 12, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023