Diagonal

[Di*ag·o*nal]

A diagonal is made out of a straight line that's set at an angle instead of straight up or across. If you picture a square and draw a line connecting the opposite corners, that’s a diagonal line.

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Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides.

Noun
a punctuation mark (/) used to separate related items of information

Noun
(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

Noun
an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"

Noun
a line or cut across a fabric that is not at right angles to a side of the fabric

Noun
(geometry) a straight line connecting any two vertices of a polygon that are not adjacent

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Adjective S.
having an oblique or slanted direction

Adjective S.
at an angle; especially 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"

a.
Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides.

n.
A right line drawn from one angle to another not adjacent, of a figure of four or more sides, and dividing it into two parts.

n.
A member, in a framed structure, running obliquely across a panel.

n.
A diagonal cloth; a kind of cloth having diagonal stripes, ridges, or welts made in the weaving.

Diagonal

Di*ag"o*nal , a. [L. diagonalis, fr. Gr. from to angle; through + an angle; perh. akin to E. knee: cf. F. diagonal.] (Geom.) Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides. Diagonal bond (Masonry), herringbone work. See Herringbone, a. -- Diagonal built (Shipbuilding), built by forming the outer skin of two layers of planking, making angles of about 45° with the keel, in opposite directions. -- Diagonal cleavage. See under Cleavage. -- Diagonal molding (Arch.), a chevron or zigzag molding. -- Diagonal rib. (Arch.) See Cross-springer. -- Diagonal scale, a scale which consists of a set of parallel lines, with other lines crossing them obliquely, so that their intersections furnish smaller subdivisions of the unit of measure than could be conveniently marked on a plain scale. -- Diagonal stratification. (Geol.) Same as Cross bedding, under Cross, a.

Diagonal

Di*ag"o*nal , n. 1. A right line drawn from one angle to another not adjacent, of a figure of four or more sides, and dividing it into two parts. 2. (Engin.) A member, in a framed structure, running obliquely across a panel. 3. A diagonal cloth; a kind of cloth having diagonal stripes, ridges, or welts made in the weaving.

Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides.

A right line drawn from one angle to another not adjacent, of a figure of four or more sides, and dividing it into two parts.

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