Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Adjective: diagonal  dI'a-gu-nul
  1. Connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face
    "a diagonal line across the page"
     
  2. Having an oblique or slanted direction
    - aslant, aslope, slanted, slanting, sloped, sloping
Noun: diagonal  dI'a-gu-nul
  1. (geometry) a straight line connecting any two vertices of a polygon that are not adjacent
     
  2. A line or cut across a fabric that is not at right angles to a side of the fabric
    - bias
     
  3. An oblique line of squares of the same colour on a checkerboard
    "the bishop moves on the diagonals"
     
  4. (mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry
     
  5. A punctuation mark (/) used to separate related items of information
    - solidus [Brit, Cdn], slash, virgule, stroke, separatrix

Derived forms: diagonals

See also: inclined, oblique

Type of: line, punctuation, punctuation mark, set, straight line

Part of: checker board [N. Amer], checkerboard [N. Amer], chequerboard [Brit, Cdn], draughtboard [Brit], square matrix

Encyclopedia: Diagonal, Iowa