👉 A torus, also known as a double torus or a double toric, is a type of surface obtained by rotating a sphere around its diameter. It is formed by taking the cross-section of a sphere with a plane perpendicular to the center of the sphere and passing through one end of the sphere's diameter.
In more technical terms, it can be defined as a two-dimensional closed surface that has no boundary and does not intersect itself. The term "torus" comes from the Latin word
torulas