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Definition of Diagonal
1. Adjective. 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"
2. Noun. (geometry) a straight line connecting any two vertices of a polygon that are not adjacent.
3. Adjective. Having an oblique or slanted direction.
4. Noun. A line or cut across a fabric that is not at right angles to a side of the fabric.
5. Noun. An oblique line of squares of the same color on a checkerboard. "The bishop moves on the diagonals"
Specialized synonyms: Main Diagonal, Principal Diagonal, Secondary Diagonal
Generic synonyms: Line, Line
6. 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.
Generic synonyms: Set
Group relationships: Square Matrix
Derivative terms: Diagonalise, Diagonalize
7. Noun. A punctuation mark (/) used to separate related items of information.
Generic synonyms: Punctuation, Punctuation Mark
Definition of Diagonal
1. 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.
2. 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.
Definition of Diagonal
1. Adjective. (geometry) Joining two nonadjacent vertices (of a polygon or polyhedron). ¹
2. Adjective. Having a slanted or oblique direction, lines or markings. ¹
3. Adjective. Pertaining to the front left and back right (or the front right and back left) legs of a quadruped. ¹
4. Noun. something arranged diagonally or obliquely ¹
5. Noun. a line or cut across a fabric that is not at right angles to a side of the fabric ¹
6. Noun. a punctuation mark used to separate related items of information ¹
7. Noun. (geometry) a diagonal line or plane ¹
8. Noun. (geometry) a line joining non-adjacent vertices of a polygon. ¹
¹ Source: wiktionary.com
Definition of Diagonal
1. an oblique line [n -S]
Medical Definition of Diagonal
1.