AskDefine | Define cuboid

Dictionary Definition

cuboid adj : shaped like a cube [syn: cubelike, cube-shaped, cubical, cubiform, cuboidal] n : a rectangular parallelepiped

User Contributed Dictionary



  1. Of the shape of a cube.


  1. The cuboid bone.
  2. A rectangular parallelepiped.


rectangular parallelepiped

Extensive Definition

In anatomy, the cuboid bone is a bone in the foot.
In geometry, a cuboid (also called a rectangular prism) is a solid figure bounded by six rectangular faces: a rectangular box. All angles are right angles, and opposite faces of a cuboid are equal. It is also a right rectangular prism. The term "rectangular or oblong prism" is ambiguous. Also the term rectangular parallelepiped is used.
The square cuboid, square box ,or right square prism (also ambiguously called square prism) is a special case of the cuboid in which at least two faces are squares. The cube is a special case of the square prism in which all faces are squares.
If the dimensions of a cuboid are a, b and c, then its volume is abc and its surface area is 2ab + 2bc + 2ac''.
The length of the space diagonal is d = \sqrt .
It is a convex polyhedron. It contains faces that enclose a single region of space. It has 6 faces, 8 vertices, and 12 edges.
Euler's formula (the number of faces (F), vertices (V), and edges (E) of a polyhedron are related by the formula F + V = E + 2 gives here 6 + 8 = 12 + 2.
Cuboid shapes are often used for boxes, cupboards, rooms, buildings, etc. Cuboids are among those solids that can tesselate 3-dimensional space. The shape is fairly versatile in being able to contain multiple smaller cuboids, e.g. sugar cubes in a box, small boxes in a large box, a cupboard in a room, and rooms in a building.

See also

cuboid in Azerbaijani: Düzbucaqlı paralelepiped
cuboid in Czech: Kvádr
cuboid in German: Quader
cuboid in Spanish: Ortoedro
cuboid in Esperanto: Kvadro
cuboid in French: Cuboïde
cuboid in Korean: 직육면체
cuboid in Indonesian: Balok
cuboid in Hebrew: תיבה (גאומטריה)
cuboid in Lithuanian: Stačiakampis gretasienis
cuboid in Hungarian: Téglatest
cuboid in Dutch: Balk (geometrie)
cuboid in Japanese: 直方体
cuboid in Polish: Prostopadłościan
cuboid in Quechua: Suqtawask'a
cuboid in Slovak: Kváder
cuboid in Slovenian: Kvader
cuboid in Serbian: Квадар
cuboid in Swedish: Rätblock
cuboid in Thai: ทรงสี่เหลี่ยมมุมฉาก
cuboid in Chinese: 長方體
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