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noun to·roid \ˈtȯr-ˌȯid\

Definition of toroid

  1. 1 :  a surface generated by a closed plane curve rotated about a line that lies in the same plane as the curve but does not intersect it

  2. 2 :  a body whose surface has the form of a toroid

Origin and Etymology of toroid

New Latin torus

First Known Use: 1886

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