tori

Tori is a term with several distinct meanings across different domains. In mathematics and geometry, tori are the plural of torus, a doughnut-shaped surface obtained by revolving a circle around an axis in its own plane. The standard torus can be described as the product of two circles (S^1 × S^1) and has genus 1. In dentistry, tori (plural of torus) refer to bony growths, most commonly torus palatinus on the palate and torus mandibularis on the mandible. These exostoses are typically benign and asymptomatic but can complicate denture fabrication or removal in some cases.

In Japanese, tori (鳥) means “bird” and appears in various compounds and names. Tori is also used as a given name in English-speaking countries, often as a short form of Victoria, and is borne by several public figures.

Note: The similarly spelled torii is a Shinto gate and is not the same as tori; the word tori is sometimes used as the plural of torus in English, though toruses is also common.