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rectangular

[rek-tang-gyuh-ler] /rɛkˈtæŋ gyə lər/
adjective
1.
shaped like a rectangle.
2.
having the base or section in the form of a rectangle:
a rectangular pyramid.
3.
having one or more right angles.
4.
forming a right angle.
Origin
1615-1625
1615-25; < Medieval Latin rēctangul(um) rectangle + -ar1
Related forms
rectangularity
[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
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for non-rectangularity

rectangular

/rɛkˈtæŋɡjʊlə/
adjective
1.
shaped like a rectangle
2.
having or relating to right angles
3.
mutually perpendicular: rectangular coordinates
4.
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 non-rectangularity

rectangular

adj.

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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