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a. A surface generated by a closed curve rotating about, but not intersecting or containing, an axis in its own plane.
b. A solid having such a surface.
2. A body having the shape of a toroid.
to·roi′dal (tô-roid′l) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Mathematics) geometry a surface generated by rotating a closed plane curve about a coplanar line that does not intersect the curve
2. (Mathematics) the solid enclosed by such a surface. See also torus
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
to•roid(ˈtɔr ɔɪd, ˈtoʊr-)
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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||toroid - the doughnut-shaped object enclosed by a torus|
solid - a three-dimensional shape
|2.||toroid - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle|
magnetic core, core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories; "each core has three wires passing through it, providing the means to select and detect the contents of each bit"
round shape - a shape that is curved and without sharp angles
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