Wiktionary

perpendicular

See also: Perpendicular

English

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 perpendicular on Wikipedia

Etymology

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Derived from Middle French perpendiculaire, from Old French perpendiculer, from Latin perpendiculum (“plumb line”).

Pronunciation

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  • (UK) IPA(key): /ˌpɜː.pənˈdɪk.jə.lə(ɹ)/ enPR: pû"pəndĭ'kyələ(r),
  • (US) IPA(key): /pɝ.pɛnˈdɪk.ju.lɚ/, /pɝ.pənˈdɪk.jə.lɚ/
  • Audio (US):(file)
  • Rhymes: -ɪkjʊlə(ɹ)

Adjective

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perpendicular (comparative more perpendicular, superlative most perpendicular)

  1. (geometry) At or forming a right angle (to something).
    Synonyms: normal, orthogonal
    In most houses, the walls are perpendicular to the floor.
    • 2012 March, Henry Petroski, “Opening Doors”, in American Scientist‎[1], volume 100, number 2, pages 112–3:
      A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.
  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”, in Dumbing of Age:
      Hey, I'm not unsabotaging anything! This is completely perpendicular sabotage!

Derived terms

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Translations

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Noun

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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.
  3. (obsolete, slang) A meal eaten at a tavern bar while standing up.

Translations

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See also

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  • ⟂ (This symbol can be pronounced “perp” when used as a subscript of a letter representing a vector.)

Catalan

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Etymology

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Borrowed from Late Latin perpendiculāris, from perpendiculum.

Pronunciation

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Adjective

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perpendicular m or f (masculine and feminine plural perpendiculars)

  1. perpendicular

Derived terms

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Noun

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perpendicular f (plural perpendiculars)

  1. perpendicular

Further reading

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Portuguese

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Etymology

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Borrowed from Late Latin perpendiculāris, from perpendiculum.

Pronunciation

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  • (Portugal) IPA(key): /pɨɾ.pẽ.di.kuˈlaɾ/
    • (Southern Portugal) IPA(key): /pɨɾ.pẽ.di.kuˈla.ɾi/

  • Hyphenation: per‧pen‧di‧cu‧lar

Adjective

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perpendicular m or f (plural perpendiculares)

  1. perpendicular

Noun

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perpendicular f (plural perpendiculares)

  1. perpendicular

Derived terms

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Romanian

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Etymology

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Borrowed from French perpendiculaire.

Noun

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perpendicular f (plural perpendiculare)

  1. perpendicular

Declension

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Declension of perpendicular
singular plural
indefinite definite indefinite definite
nominative-accusative perpendicular perpendiculara perpendiculare perpendicularele
genitive-dative perpendiculare perpendicularei perpendiculare perpendicularelor
vocative — —

Spanish

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Etymology

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Borrowed from Late Latin perpendiculāris, from perpendiculum.

Pronunciation

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  • IPA(key): /peɾpendikuˈlaɾ/ [peɾ.pẽn̪.d̪i.kuˈlaɾ]
  • Rhymes: -aɾ
  • Syllabification: per‧pen‧di‧cu‧lar

Adjective

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perpendicular m or f (masculine and feminine plural perpendiculares)

  1. perpendicular

Derived terms

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Further reading

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