[to.roid] n [NL torus] (ca. 1900) 1: a surface generated by a plane closed curve rotated about a line that lies in the same plane as the curve but does not intersect it
2: a body whose surface has the form of a toroid
[to.roid] n [NL torus] (ca. 1900) 1: a surface generated by a plane closed curve rotated about a line that lies in the same plane as the curve but does not intersect it
2: a body whose surface has the form of a toroid
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012