1

diagonal

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adjective di·ag·o·nal \dī-ˈa-gə-nəl, -ˈag-nəl\

Definition of diagonal

  1. 1a :  joining two vertices of a rectilinear figure that are nonadjacent or two vertices of a polyhedral figure that are not in the same faceb :  passing through two nonadjacent edges of a polyhedron a diagonal plane

  2. 2a :  inclined obliquely from a reference line (such as the vertical) wood with a diagonal grainb :  having diagonal markings or parts a diagonal weave

Examples of diagonal in a Sentence

  1. The blanket is covered with diagonal stripes.

  2. the diagonal design ran up the wall all the way from the lower left to the upper right-hand corner

Recent Examples of diagonal from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagonal'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of diagonal

Latin diagonalis, from Greek diagōnios from angle to angle, from dia- + gōnia angle; akin to Greek gony knee — more at 1knee

Other Mathematics and Statistics Terms


2

diagonal

noun di·ag·o·nal

Definition of diagonal

  1. 1 :  a diagonal straight line or plane

  2. 2a (1) :  a diagonal direction (2) :  a diagonal row, arrangement, or patternb :  something oriented in diagonal position

  3. 3 :  slash 4

on the diagonal

  1. :  in an oblique direction :  diagonally

Examples of diagonal in a Sentence

  1. a design with strong diagonals

  2. the ramp was set at a low diagonal to make it easier for physically challenged patrons

Recent Examples of diagonal from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagonal'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diagonal

1571

Other Mathematics and Statistics Terms



DIAGONAL Defined for English Language Learners

diagonal

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adjective

Definition of diagonal for English Language Learners

  • of a straight line : joining two opposite corners of a shape (such as a square or rectangle) especially by crossing the center point of the shape

  • : not going straight across or up and down

diagonal

noun

Definition of diagonal for English Language Learners

  • : a diagonal line, direction, or pattern


DIAGONAL Defined for Kids

1

diagonal

play
adjective di·ag·o·nal \dī-ˈa-gə-nəl, -ˈag-nəl\

Definition of diagonal for Students

  1. 1 :  running from one corner to the opposite corner of a four-sided shape (as a square) a diagonal line

  2. 2 :  running in a slanting direction diagonal stripes

diagonally

\-nə-lē\ adverb

2

diagonal

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noun di·ag·o·nal

Definition of diagonal for Students

  1. :  a line, direction, or pattern that runs in a slanting direction



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