Definition of "toroid" [toroid]

• Mathematics A surface generated by a closed curve rotating about, but not intersecting or containing, an axis in its own plane. (noun)
• Mathematics A solid having such a surface. (noun)
• A body having the shape of a toroid. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I think you were just missing the need for the patch where the "toroid" was. just a quick Q: why all the UCS changes?"
• "The key component is the car's flywheel accumulator, a washer drum-sized device sitting in the cockpit that stores electrical energy mechanically, in a toroid-shaped mass spinning at up to 38,000 rpm."
• "In response to a few quick taps of his razor-sharp claws, the darkened screen lit up and displayed what was obviously a highly magnified view of a complex molecular form, its toroid surface studded with innumerable side chains; it reminded Riker of one of the perceptually deceptive drawings of M. C. Escher."