Diagonal

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Related to diagonally: Minor diagonal

diagonal

1. Maths connecting any two vertices that in a polygon are not adjacent and in a polyhedron are not in the same face
2. Maths a diagonal line or plane
3. Chess any oblique row of squares of the same colour
4. cloth marked or woven with slanting lines or patterns
5. 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

Diagonal

Joins two nonadjacent sides of a polygon with a slanted or oblique direction from one corner to the other; their use in a square or rectangle produces two triangular shapes.

Diagonal

 

a dense fabric of twisted cotton or wool yarn. Diagonals are characterized by sharp ribs on the surface running at an angle of more than 45° to the selvage. The ribs are obtained by proper selection of the ratio of the density and thickness of the warp and woof, as well as by the special interweaving of threads. Diagonal is used for uniforms (from wool warp and cotton woof), coats, and jackets.


Diagonal

 

(1) The diagonal of a polygon is the line segment between two nonadjacent vertices. If the number of vertices of a polygon is n, then the number of diagonals is n(n -3)12.

(2) The diagonal of a polyhedron is the line segment between two vertices that do not lie on the same face.

diagonal

[dī′ag·ən·əl]
(civil engineering)
A sloping structural member, under compression or tension or both, of a truss or bracing system.
(mathematics)
The set of points all of whose coordinates are equal to one another in an n-dimensional coordinate system.
A line joining opposite vertices of a polygon with an even number of sides.
(optics)
A plane mirror or prism face mounted near the eyepiece of a telescope at an angle to the light path, to redirect the light for convenience of observation or to reduce the intensity of the image of the sun so that it can be observed directly.
(textiles)
A heavy twilled fabric.

diagonal

In a framed structure, an inclined member running across a panel, 7, e.g., as in a truss.
References in periodicals archive ?
8 squares 3 7/8"x 3 7/8" cut diagonally to yield 16 triangles [?
From the entrance hall, one can see diagonally through the building to the terrace and from the terrace on to the Monument.
The "3 Press's" "Monster" (M1) sprints diagonally down and over to shoot the gap between the ballhandler and the potential pass receiver left open by TT4's rotation up to trap the dribbler with TW3.
Passing through the doors, you find yourself standing above the corner of a sunken and diagonally oriented square patio as the two walls, now seen as extending upwards from the patio's two closest sides, form a gigantic gesture of open-handed offering.
In the moment, Aitken dangles his responses in front of us on eleven large plasma-screen monitors, arranged in an S-curve that here diagonally bisected a darkened room.
Trait: spelled diagonally, beginning in the third row, first column.
Start from a standing position, and with your right leg, take a lunge diagonally forward.
K-M's RTP system starts by extruding an HDPE inner tube, which is over-wrapped diagonally with two to four layers of a composite tape of nylon, PET, or glass fibers impregnated with PE.
Cross the second field diagonally to a gate at the end of a farmyard.
And a seemingly never-ending procession of leafcutter ants tack diagonally across the next spot in the trail on a pheromone-driven mission to and from their monolithic anthills.
There are anagram-based scramblegrams; word hunter puzzles, which hide words in letter clusters going forward, backward, diagonally, and even crooked; word melts, in which one word transforms into another with the change of three letters at a time; and Word Blocks, which are sets of two or three letters that must be joined to make as many words as possible.