diagonal

The definition of diagonal is something with slanted lines or a line that connects one corner with the corner furthest away.

(adjective)

An example of diagonal is a line going from the bottom left corner of a square to the top right corner.

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See diagonal in Webster's New World College Dictionary

adjective

  1. extending between the vertices of any two nonadjacent angles in a polygonal figure or between any two vertices not in the same face in a polyhedral figure; extending slantingly between opposite corners
  2. moving or extending obliquely, esp. at a 45° angle; slanting
  3. having slanting markings, lines, etc.

Origin: L diagonalis < Gr diagōnios < dia-, through + gōnia, an angle, corner: see knee

noun

    1. a diagonal line or plane
    2. virgule
  1. any diagonal course, row, order, or part
  2. cloth woven with diagonal lines; twill

Related Forms:

See diagonal in American Heritage Dictionary 4

adjective
  1. Mathematics
    a. Joining two nonadjacent vertices of a polygon.
    b. Joining two vertices of a polyhedron not in the same face.
  2. Having a slanted or oblique direction.
  3. Having oblique lines or markings.
  4. Relating to or being the front left and back right feet or the front right and back left feet of a quadruped.
noun
  1. Mathematics A diagonal line or plane.
  2. Something, such as a row, course, or part, that is arranged obliquely.
  3. A fabric woven with diagonal lines.
  4. A virgule.

Origin:

Origin: Latin diagōnālis

Origin: , from Greek diagōnios, from angle to angle

Origin: : dia-, dia-

Origin: + gōniā, angle, corner; see genu-1 in Indo-European roots

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Related Forms:

  • di·agˈo·nal·ly adverb

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