# diagonal

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diagonal

## di·ag·o·nal

(dī-ăg′ə-nəl)
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.
n.
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.

[Latin diagōnālis, from Greek diagōnios, from angle to angle : dia-, dia- + gōniā, angle, corner; see genu- in Indo-European roots.]

## diagonal

(daɪˈæɡənəl)
1. (Mathematics) 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
n
4. (Mathematics) maths a diagonal line or plane
5. (Chess & Draughts) chess any oblique row of squares of the same colour
6. (Textiles) cloth marked or woven with slanting lines or patterns
7. something put, set, or drawn obliquely
8. (Printing, Lithography & Bookbinding) another name for solidus1
9. (Horse Training, Riding & Manège) 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
[C16: from Latin diagōnālis, from Greek diagōnios, from dia- + gōnia angle]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## di•ag•o•nal

(daɪˈæg ə nl, -ˈæg nl)

1.
a. connecting two nonadjacent angles or vertices of a polygon or polyhedron: a diagonal line.
b. extending from one edge of a solid figure to an opposite edge: a diagonal plane.
2. having an oblique direction.
3. having oblique lines or markings.
n.
4. a diagonal line or plane.
6. a diagonal row, part, or pattern.
[1535–45; < Latin diagōnālis < Greek diagṓn(ios) from angle to angle (see dia-, -gon)]

## di·ag·o·nal

(dī-ăg′ə-nəl)
Connecting two nonadjacent corners in a polygon or two nonadjacent corners in a polyhedron that do not lie in the same face.
Noun
A diagonal line segment.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 diagonal - (geometry) a straight line connecting any two vertices of a polygon that are not adjacentgeometry - the pure mathematics of points and lines and curves and surfacesstraight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line" 2 diagonal - a line or cut across a fabric that is not at right angles to a side of the fabricbiasstraight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line" 3 diagonal - an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"checker board, checkerboard - a board having 64 squares of two alternating colorsmain diagonal, principal diagonal - the diagonal of a square matrix running from the upper left entry to the lower right entrysecondary diagonal - the diagonal of a square matrix running from the lower left entry to the upper right entryline - a formation of people or things one behind another; "the line stretched clear around the corner"; "you must wait in a long line at the checkout counter"line - a formation of people or things one beside another; "the line of soldiers advanced with their bayonets fixed"; "they were arrayed in line of battle"; "the cast stood in line for the curtain call" 4 diagonal - (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 entrymath, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementset - (mathematics) an abstract collection of numbers or symbols; "the set of prime numbers is infinite"square matrix - a matrix with the same number of rows and columns 5 diagonal - a punctuation mark (/) used to separate related items of informationpunctuation mark, punctuation - the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases Adj. 1 diagonal - 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"oblique - slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled; "the oblique rays of the winter sun"; "acute and obtuse angles are oblique angles"; "the axis of an oblique cone is not perpendicular to its base" 2 diagonal - having an oblique or slanted directioninclined - at an angle to the horizontal or vertical position; "an inclined plane"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## diagonal

adjective slanting, angled, oblique, cross, crosswise, crossways, cater-cornered (U.S. informal), cornerways a pattern of diagonal lines
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

## diagonal

Angled at a slant:
Translations
úhlopříčkaúhlopříčný
diagonal
vinolävistäjäviisto
dijagonalan
átlósferderézsútosátló
hornalína

대각선의
diagonalėįstrižaiįstrižainė
diagonāle
uhlopriečka
diagonal
ทแยงมุม
chéo

## diagonal

[daɪˈægənl]
B. N
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## diagonal

[daɪˈægənəl]
n (= line) →
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## diagonal

nDiagonale f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## diagonal

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

## diagonal

(daiˈӕgənl) noun
a line going from one corner to the opposite corner. The two diagonals of a rectangle cross at the centre.
in a diagonal line. He walked diagonally across the field.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

## diagonal

úhlopříčný diagonal vino dijagonalan 対角の 대각선의 diagonal ทแยงมุม chéo
Multilingual Translator © HarperCollins Publishers 2009

## diagonal

a. diagonal, sección transversal.
English-Spanish Medical Dictionary © Farlex 2012
References in classic literature ?
If many simultaneously and variously directed forces act on a given body, the direction of its motion cannot coincide with any one of those forces, but will always be a mean- what in mechanics is represented by the diagonal of a parallelogram of forces.
According to his account, my unfortunate Ancestor, being afflicted with rheumatism, and in the act of being felt by a Polygon, by one sudden start accidentally transfixed the Great Man through the diagonal; and thereby, partly in consequence of his long imprisonment and degradation, and partly because of the moral shock which pervaded the whole of my Ancestor's relations, threw back our family a degree and a half in their ascent towards better things.
Captain Nemo intended seeking the bottom of the ocean by a diagonal sufficiently lengthened by means of lateral planes placed at an angle of 45@ with the water-line of the Nautilus.
That morning, finding that I was to be involved in the horrid disappointment he had prepared for the mutineers, he had run all the way to the cave, and leaving the squire to guard the captain, had taken Gray and the maroon and started, making the diagonal across the island to be at hand beside the pine.
He pushed forward down the course of the Ottolais, which runs diagonal to the Columbia, and falls into it about fifty miles below the Wallah-Wallah.
A few cheers heralded the advent of several young fellows, in shirt- sleeves, carrying buckets, bottles, and towels, who crawled through the ropes and crossed to the diagonal corner from her.
The theorem that the square of the diagonal is double the square of the side--that famous discovery of primitive mathematics, in honour of which the legendary Pythagoras is said to have sacrificed a hecatomb--is elicited from him.
Some square ornaments on the coping of these same walls, were moved by the earthquake into a diagonal position.
So the little impudent fellow would waste many an ear in a forenoon; till at last, seizing some longer and plumper one, considerably bigger than himself, and skilfully balancing it, he would set out with it to the woods, like a tiger with a buffalo, by the same zig-zag course and frequent pauses, scratching along with it as if it were too heavy for him and falling all the while, making its fall a diagonal between a perpendicular and horizontal, being determined to put it through at any rate; -- a singularly frivolous and whimsical fellow; -- and so he would get off with it to where he lived, perhaps carry it to the top of a pine tree forty or fifty rods distant, and I would afterwards find the cobs strewn about the woods in various directions.
But no sooner did his harpooneer stand up for the stroke, than all three tigers --Queequeg, Tashtego, Daggoo -- instinctively sprang to their feet, and standing in a diagonal row, simultaneously pointed their barbs; and darted over the head of the German harpooneer, their three Nantucket irons entered the whale.
Mowgli ran his hand down the diagonal checkerings of the immense back.
Then with common accord turned their eyes back to the street door, closed, massive, dark; the great, clear-brass knocker shining in a quiet slant of sunshine cut by a diagonal line of heavy shade filling the further end of the street.

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