Antidiagonal vs. Diagonal

Antidiagonalnoun

(linear algebra) The diagonal of a matrix that leads from top-right towards bottom-left

Diagonaladjective

(geometry) Joining two nonadjacent vertices (of a polygon or polyhedron).

Diagonaladjective

Having slanted or oblique lines or markings.

Diagonaladjective

Having a slanted or oblique direction.

Diagonaladjective

Of or related to the cater-corner (diagonally opposite) legs of a quadruped, whether the front left and back right or front right and back left.

Diagonalnoun

(geometry) A line joining non-adjacent vertices of a polygon.

Diagonalnoun

Anything forming or resembling such a line, particularly:

Diagonalnoun

(geometry) A line or plane at an oblique angle to another.

Diagonalnoun

A line or cut across a fabric at an oblique angle to its sides.

Diagonalnoun

synonym of slash⟨/⟩.

Diagonaladjective

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.

Diagonalnoun

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.

Diagonalnoun

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

Diagonalnoun

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

Diagonalnoun

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

Diagonalnoun

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

Diagonalnoun

an oblique line of squares of the same color on a checkerboard;

Diagonalnoun

(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

Diagonalnoun

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

Diagonaladjective

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;

Diagonaladjective

having an oblique or slanted direction

Diagonal

In geometry, a diagonal is a line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same edge. Informally, any sloping line is called diagonal.