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[rek-tang-gyuh-ler] /rɛkˈtæŋ gyə lər/
shaped like a rectangle.
having the base or section in the form of a rectangle:
a rectangular pyramid.
having one or more right angles.
forming a right angle.
Origin of rectangular
1615-25; < Medieval Latin rēctangul(um) rectangle + -ar1
Related forms
[rek-tang-gyuh-lar-i-tee] /rɛkˌtæŋ gyəˈlær ɪ ti/ (Show IPA),
rectangularness, noun
rectangularly, adverb
nonrectangular, adjective
nonrectangularly, adverb
nonrectangularity, noun
subrectangular, adjective
unrectangular, adjective
unrectangularly, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for rectangular
Contemporary Examples
Historical Examples
  • It was circular at one end and rectangular at the other, at which was the entrance.

    Architecture Thomas Roger Smith
  • The patio, in its blackness, was like the rectangular mouth of a bottomless pit.

    Romance Joseph Conrad and F.M. Hueffer
  • The first type consists of a rectangular label, measuring about 25½ by 38 mm.

    The Stamps of Canada Bertram Poole
  • It is simply a rectangular piece of stuff; as a rule, all blue, red, or black.

    The Philippine Islands John Foreman
  • They are rectangular pieces of cardboard, with windows cut in them.

    The Story of the Mind James Mark Baldwin
  • They may be rectangular, or some of the edges may be curved.

    Handwork in Wood

    William Noyes
  • He was a short, rectangular little man in his fifties named Spencer.

    The Perfectionists Arnold Castle
  • Bread is served to the Freshmen and Juniors in rectangular wads.

British Dictionary definitions for rectangular


shaped like a rectangle
having or relating to right angles
mutually perpendicular: rectangular coordinates
having a base or section shaped like a rectangle
Derived Forms
rectangularity, noun
rectangularly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for rectangular

1620s, from Middle French rectangulaire (16c.) or formed in English from Latin stem of rectangle + -ar. Related: Rectangularity.

Online Etymology Dictionary, © 2010 Douglas Harper
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