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1

perpendicular

play
adjective per·pen·dic·u·lar \ˌpər-pən-ˈdi-kyə-lər\

Simple Definition of perpendicular

  • : going straight up or to the side at a 90 degree angle from another line or surface

Source: Merriam-Webster's Learner's Dictionary

Full Definition of perpendicular

  1. 1 a :  standing at right angles to the plane of the horizon :  exactly upright b :  being at right angles to a given line or plane

  2. 2 :  extremely steep :  precipitous

  3. 3 often capitalized :  of or relating to a medieval English Gothic style of architecture in which vertical lines predominate

  4. 4 :  relating to, uniting, or consisting of individuals of dissimilar type or on different levels

perpendicularity

play \-ˌdi-kyə-ˈla-rə-tē\ noun

perpendicularly

play \-ˈdi-kyə-lər-lē\ adverb

Examples of perpendicular in a sentence

  1. She lives on the street that is perpendicular to mine.

  2. <river rafters staring awestruck at the canyon's nearly perpendicular cliffs>



Origin and Etymology of perpendicular

Middle English perpendiculer, from Middle French, from Latin perpendicularis, from perpendiculum plumb line, from per- + pendēre to hang — more at pendant


First Known Use: 14th century

Synonym Discussion of perpendicular

vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith <the side of the cliff is almost vertical>. perpendicular may stress the straightness of a line making a right angle with any other line, not necessarily a horizontal one <the parallel bars are perpendicular to the support posts>. plumb stresses an exact verticality determined (as with a plumb line) by earth's gravity <make sure that the wall is plumb>.

Other Mathematics and Statistics Terms


2

perpendicular

noun per·pen·dic·u·lar

Definition of perpendicular

  1. :  a line at right angles to a line or plane (as of the horizon)



1571

First Known Use of perpendicular

1571

Other Mathematics and Statistics Terms

Rhymes with perpendicular


PERPENDICULAR Defined for Kids

1

perpendicular

play
adjective per·pen·dic·u·lar \ˌpər-pən-ˈdi-kyə-lər\

Definition of perpendicular for Students

  1. 1 :  exactly vertical

  2. 2 :  being at right angles to a line or surface <The letter T is made with two perpendicular lines.>

perpendicularly

adverb



2

perpendicular

play
noun per·pen·dic·u·lar

Definition of perpendicular for Students

  1. :  a line, surface, or position at right angles to another line, surface, or position





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