see also: Perpendicular
  • (British) IPA: /ˌpɜː.pənˈdɪk.jə.lə(ɹ)/ enPR: pû"pəndĭ'kyələ(r),
  • (America) IPA: /pɝ.pɛnˈdɪk.ju.lɚ/, /pɝ.pənˈdɪk.jə.lɚ/


  1. (geometry) at or forming a right angle (to something).
    In most houses, the walls are perpendicular to the floor.
    Synonyms: normal, orthogonal
  2. Exactly upright; extending in a straight line toward the centre of the earth, etc.
  3. Independent of or irrelevant to each other; orthogonal.
    • 2019 May 31, David M. Willis, "Wrangled" ↗, Dumbing of Age:
      Hey, I'm not unsabotaging anything! This is completely perpendicular sabotage!
Translations Noun

perpendicular (plural perpendiculars)

  1. (geometry) a line or plane that is perpendicular to another
  2. a device such as a plumb line that is used in making or marking a perpendicular line
Translations Translations


  1. (architecture) Of a style of English Gothic architecture from the fourteenth and fifteenth centuries, marked by stiff and rectilinear lines, mostly vertical window-tracery, depressed or four-centre arch, fan-tracery vaulting, and panelled walls.

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