Tori

Tori is a term with multiple meanings in different fields. In mathematics, a torus is a surface of revolution generated by revolving a circle in three-dimensional space about an axis coplanar with the circle. In anatomy, tori refer to a variety of bone growths. In Japanese culture, a torii is a traditional Japanese gate most commonly found at the entrance of or within a Shinto shrine.

Mathematics

In mathematics, particularly in topology, a torus (plural tori) is a surface of revolution generated by revolving a circle in three-dimensional space about an axis coplanar with the circle. If the axis of revolution does not touch the circle, the surface has a ring shape and is called a ring torus or simply torus if the ring shape is implicit.

Anatomy

In anatomy, tori are bone growths. The most common types of tori are Torus palatinus and Torus mandibularis, which occur on the palate and mandible respectively. These are usually benign growths that occur in adults.

Japanese culture

In Japanese culture, a torii is a traditional Japanese gate most commonly found at the entrance of or within a Shinto shrine, where it symbolically marks the transition from the mundane to the sacred. The presence of a torii at the entrance is usually the simplest way to identify Shinto shrines.