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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 | 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.

  3. What Does Perpendicular Mean? A Complete Overview

    Oct 23, 2025 · In math, the term perpendicular is used when we study lines. Perpendicular lines are lines that meet at a right angle. A right angle measures exactly 90 degrees. When two …

  4. PERPENDICULAR Definition & Meaning | Dictionary.com

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

  5. 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.

  6. 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.

  7. PERPENDICULAR definition in American English | 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 mountain …

  8. Perpendicular Definition (Illustrated Mathematics Dictionary)

    Illustrated definition of Perpendicular: At right angles (90deg;) to. The symbol is perp; Try for yourself:

  9. Meaning, Examples | Perpendicular Lines Definition - Cuemath

    Perpendicular lines are those lines that intersect each other at right angles (90°). Parallel lines are those lines that do not intersect anywhere and are always the same distance apart.

  10. Perpendicular - definition of perpendicular by The Free Dictionary

    perpendicular adjective 1. upright, straight, vertical, plumb, on end the perpendicular wall of sandstone 2. steep, sheer, precipitous, vertiginous a narrow, exposed beach and …