Definitions for: Diagonal

[n] a punctuation mark (/) used to separate related items of information
[n] (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
[n] an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"
[n] a line or cut across a fabric that is not at right angles to a side
[n] (geometry) a straight line connecting any two vertices of a polygon that are not adjacent
[adj] having an oblique or slanted direction
[adj] 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"

Webster (1913) Definition: Di*ag"o*nal, a. [L. diagonalis, fr. Gr. ? from to
angle; dia` 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[deg] 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.

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.

Synonyms: aslant, aslope, bias, inclined, oblique, separatrix, slanted, slanting, slash, sloped, sloping, solidus, stroke, virgule

See Also: checkerboard, line, main diagonal, principal diagonal, punctuation, punctuation mark, secondary diagonal, set, square matrix, straight line

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