Torus (disambiguation)
Encyclopedia
Torus or tori may refer to:

In botany
  • Torus, a structure of the xylem
    Xylem
    Xylem is one of the two types of transport tissue in vascular plants. . The word xylem is derived from the Classical Greek word ξυλον , meaning "wood"; the best-known xylem tissue is wood, though it is found throughout the plant...

  • a synonym for a sagittal keel
    Sagittal Keel
    The Sagittal keel is a thickening of bone on part or all of the midline of the frontal, or parietals where they meet along the sagittal suture, or on both bones. Sagittal keels occur in Homo erectus and occasionally Homo heidelbergensis, where they probably served as an armour against shock to the...

    , a structure found in crania


In mathematics:
  • Torus
    Torus
    In geometry, a torus is a surface of revolution generated by revolving a circle in three dimensional space about an axis coplanar with the circle...

    , a surface
  • Torus knot
    Torus knot
    In knot theory, a torus knot is a special kind of knot that lies on the surface of an unknotted torus in R3. Similarly, a torus link is a link which lies on the surface of a torus in the same way. Each torus knot is specified by a pair of coprime integers p and q. A torus link arises if p and q...

  • Algebraic torus
    Algebraic torus
    In mathematics, an algebraic torus is a type of commutative affine algebraic group. These groups were named by analogy with the theory of tori in Lie group theory...

  • Double torus
  • Umbilic torus
    Umbilic Torus
    The umbilic torus is a single-edged 3-dimensional figure created by Helaman Ferguson as a mathematical artwork. Ferguson created a 27-inch bronze sculpture, Umbilic Torus, and it is his most widely known piece of art. The lone edge goes three times around the ring before returning to the starting...



In medicine:
  • Torus palatinus
    Torus palatinus
    Torus palatinus [palatinus torus in English] is a bony protrusion on the palate. Palatal tori are usually present on the midline of the hard palate...

    , a bony growth on the palate
  • Torus mandibularis
    Torus mandibularis
    Torus mandibularis is a bony growth in the mandible along the surface nearest to the tongue. Mandibular tori are usually present near the premolars and above the location of the mylohyoid muscle's attachment to the mandible...

    , a bony growth on the mandible
  • Torus fracture, a term used in radiology to describe an incomplete fracture of the distal radius in children where there is no obvious fracture line on any radiograph.


In nuclear physics:
  • Torus (nuclear physics)
  • Joint European Torus
    Joint European Torus
    JET, the Joint European Torus, is the largest magnetic confinement plasma physics experiment worldwide currently in operation. Its main purpose is to open the way to future nuclear fusion experimental tokamak reactors such as ITER and :DEMO....

    , an experimental nuclear fusion reactor


In Architecture
  • A semicircular molding - see Molding (decorative)#Types
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