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View synonyms for diagonal

diagonal

[ dahy-ag-uh-nl, -ag-nl ]

adjective

  1. Mathematics.
    1. connecting two nonadjacent angles or vertices of a polygon or polyhedron, as a straight line.
    2. extending from one edge of a solid figure to an opposite edge, as a plane.
  2. having an oblique direction.
  3. having oblique lines, ridges, markings, etc.


noun

  1. a diagonal line or plane.
  2. a diagonal row, part, pattern, etc.
  3. Manège. (of a horse at a trot) the foreleg and the hind leg, diagonally opposite, which move forward simultaneously.
  4. Mathematics. a set of entries in a square matrix running either from upper left to lower right main diagonal, or principal diagonal or lower left to upper right secondary diagonal.
  5. Chess. one of the oblique lines of squares on a chessboard:

    He advanced his bishop along the open diagonal.

diagonal

/ daɪˈæɡənəl /

adjective

  1. maths connecting any two vertices that in a polygon are not adjacent and in a polyhedron are not in the same face
  2. slanting; oblique
  3. marked with slanting lines or patterns
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


noun

  1. maths a diagonal line or plane
  2. chess any oblique row of squares of the same colour
  3. cloth marked or woven with slanting lines or patterns
  4. something put, set, or drawn obliquely
  5. another name for solidus
  6. one front leg and the hind leg on the opposite side of a horse, which are on the ground together when the horse is trotting
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

diagonal

/ dī-ăgə-nəl /

Adjective

  1. Connecting two nonadjacent corners in a polygon or two nonadjacent corners in a polyhedron that do not lie in the same face.


Noun

  1. A diagonal line segment.
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Derived Forms

  • diˈagonally, adverb
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Other Words From

  • di·ago·nal·ly adverb
  • nondi·ago·nal adjective noun
  • nondi·ago·nal·ly adverb
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Word History and Origins

Origin of diagonal1

First recorded in 1535–45; from Latin diagōnālis, from Greek diagṓn(ios) “from angle to angle” + Latin -ālis adjective suffix; dia-, -gon, -al 1
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Word History and Origins

Origin of diagonal1

C16: from Latin diagōnālis, from Greek diagōnios, from dia- + gōnia angle
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Example Sentences

Basically, it gives a rough measurement of the diagonal line you could draw between the bottom left and the upper right corners.

The probability that they would guess correctly was the fraction of the area that was on the “correct” side of the diagonal dividing line.

The first night, they fell asleep on a diagonal sofa, happy and warm.

Pro skier Drew Petersen teamed up with Salomon TV and Switchback Entertainment to demonstrate the diagonal and A-frame ski-carry techniques.

In further simulations, they varied the number of diagonals as well as their spacing and thickness to find the lattice that could sustain the most compression.

The young man weaves through clusters of bamboo and cuts a diagonal slash into a tree, positioning a hollow log at the end.

But early on, his fictional people so often took the easy diagonal cut for betrayal.

A long, diagonal cross from Marcelo saw the ball reach Hulk, who brought it down to his feet from the top of his monumental chest.

Others were paired with sportswear-inspired tops—think a tracksuit zip-up made glam with diagonal decorative panels.

I bought wine and I made a wine list and it was the first wine list of its kind: vertical, horizontal, and diagonal.

The pillars are strengthened against lateral yielding by horizontal and diagonal bracing.

It was built at Chatham, from the design of Mr. Oliver Lang, of mahogany and on the diagonal principle.

Construction: diagonal principle, Dantzic oak without, horizontal planking of Italian larch.

At the left of the doorway, a bay window, also heavily curtained, is set into the diagonal wall.

At (a) the diagonal lines are used to distinguish the flat side of the neck from the round part of the bolt above it.

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diagnosticsdiagonal cloth