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  1. PERPENDICULAR Definition & Meaning - Merriam-Webster

    vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith. perpendicular may stress the straightness of a …

  2. Perpendicular - Wikipedia

    A line is said to be perpendicular to a plane if it is perpendicular to every line in the plane that it intersects. This definition depends on the definition of perpendicularity between lines.

  3. Perpendicular - Meaning, Examples | Perpendicular Lines Definition

    A perpendicular is a straight line that makes an angle of 90 ° with another line. 90 ° is also called a right angle and is marked by a little square between two perpendicular lines as shown in the …

  4. What are Perpendicular Lines? Definition, Properties, Examples

    A perpendicular is a line that intersects another line at a right angle. Learn the definition of perpendicular, symbol, properties, real life examples, and more.

  5. What Does Perpendicular Mean? A Complete Overview

    Oct 23, 2025 · In this guide, we’ll take a closer look at what perpendicular means in math and geometry through clear definitions, easy-to-follow visuals, side-by-side comparisons, a fun little …

  6. PERPENDICULAR | English meaning - Cambridge Dictionary

    PERPENDICULAR definition: 1. at an angle of 90° to a horizontal line or surface: 2. at an angle of 90° to another line or…. Learn more.

  7. PERPENDICULAR Definition & Meaning | Dictionary.com

    Perpendicular definition: vertical; straight up and down; upright.. See examples of PERPENDICULAR used in a sentence.

  8. Perpendicular and Parallel - Math is Fun

    Perpendicular means at right angles (90°) to. The red line is perpendicular to the blue line here: Here also: (The little box drawn in the corner, means "at right angles", so we didn't really need …

  9. Perpendicular - Math.net

    Perpendicular lines, rays, and line segments are lines or parts of lines that meet or cross at right angles. If lines l and m are perpendicular to each other, we can write l⊥m where "⊥" is the …

  10. PERPENDICULAR definition and meaning | Collins English …

    A perpendicular line or surface points straight up, rather than being sloping or horizontal. We made two slits for the eyes and a perpendicular line for the nose. The sides of the loch are …