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toroid

[tawr-oid, tohr-] /ˈtɔr ɔɪd, ˈtoʊr-/
noun, Geometry.
1.
a surface generated by the revolution of any closed plane curve or contour about an axis lying in its plane.
2.
the solid enclosed by such a surface.
Origin of toroid
1895-1900
First recorded in 1895-1900; tor(us) + -oid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for toroid

toroid

/ˈtɔːrɔɪd/
noun
1.
(geometry) a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
2.
the solid enclosed by such a surface See also torus
Derived Forms
toroidal, adjective
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
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toroid in Science
toroid
  (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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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