Meaning & Definition of word "Diagonal"

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    Diagonal

    /daɪˈæɡ.ə.nəl/

    noun:

    • 1. A line segment connecting two non-adjacent vertices of a polygon or polyhedron.
      • Example: In a rectangle, the diagonals are equal in length.
    • 2. A straight line joining two opposite corners of a square, rectangle, or other shape.
      • Example: The players moved the pieces along the diagonals of the chessboard.

    adjective:

    • 1. Situated at an angle, especially in relation to right angles; not parallel or perpendicular.
      • Example: The table was placed diagonally in the corner of the room for a more dynamic layout.
    • 2. Relating to a diagonal line or direction in geometry.
      • Example: The diagonal cut in the fabric added a unique touch to the dress.

    Etymology

    From Latin 'diagonalis', from 'diagon' meaning 'to cut across' or 'cutting across'.

    Common Phrases and Expressions

    diagonal slice:

    A cut made at an angle rather than straight across.

    diagonal line:

    A line that goes from one corner to another in a shape.

    Related Words

    oblique:

    Not explicit or done in a direct way.

    perpendicular:

    Intersecting at or forming right angles.

    Slang Meanings of diagonal

    Meaning: Diagonally challenged

    Example Sentence: He's a bit diagonally challenged when it comes to sports.