WordWeb Online

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

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 [Brit], set, straight line

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

Encyclopedia: Diagonal, Iowa