toroid
to.roid \'to-(*)r-.o.id, 'to.(*)r-\ n [NL torus] 1: a surface generated by a plane closed curve rotated about a line in its plane that does not intersect the curve 2: a body whose surface has the form of a toroid
Webster's English Dictionaryto.roid \'to-(*)r-.o.id, 'to.(*)r-\ n [NL torus] 1: a surface generated by a plane closed curve rotated about a line in its plane that does not intersect the curve 2: a body whose surface has the form of a toroid