What is another word for torus?
Pronunciation: [tˈɔːɹəs] (IPA) 
A torus is a geometric shape that resembles a doughnut shape. It is also known as a ring or a donut-shaped object. Other synonyms for torus include a circular ring, loop, roundlet, annulus, circle, hoop or band. In mathematics, a torus can also be referred to as a toroidal surface or a surface of revolution. In engineering, a torus is often referred to as a gear ring or ring gear. Tori can also be found in nature, such as in the shape of bubbles or some fruits like the apple or pear. Regardless of the context, these synonyms all refer to a similar shape that has a circular or rounded profile.
