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perpendicular - definition and synonyms

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adjective     perpendicular pronunciation in British English
/ˌpɜː(r)pənˈdɪkjʊlə(r)/
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  1. 1
    completely upright and straight

    perpendicular cliffs

    1. a.
      maths forming a 90° angle with another surface or line
      perpendicular to:

      Line A is perpendicular to line B.

  2. 2

    Perpendicular

    built in the style of 14th to 16th century English churches, using tall narrow designs and straight upright lines
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