No. A torus is a three dimensional shape whereas a circle is a two dimensional shape.
a horizontal bar of bone seen above the angularity in the occipital.
Toru Iwatani was born on January 25, 1955.
Tōru Takemitsu was born on October 8, 1930.
A torus is a doughnut shape. There is a picture and an enormous amount of information at http://en.wikipedia.org/wiki/Torus .