adjective
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shaped like a rectangle
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having or relating to right angles
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mutually perpendicular
rectangular coordinates
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having a base or section shaped like a rectangle
Other Word Forms
Etymology
Origin of rectangular
1615–25; < Medieval Latin rēctangul ( um ) rectangle + -ar 1
Explanation
In geometry, something that is rectangular had four sides and four right angles. Cereal boxes, dollar bills, and many cell phones have a rectangular shape. Anything shaped like a rectangle is rectangular. Your backyard may be rectangular, and your brother's oversized suit jacket might give his body a somewhat rectangular shape. The most important aspect of something that makes it rectangular is those four right angles, and the word itself is rooted in the Latin rectus, "right," and the Old French angle, "angle."
Vocabulary lists containing rectangular
Geometry - Introductory
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Geometry - Middle School
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Number and Operations: Fractions
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Godin said that the outposts take several months to build and follow a similar rectangular layout.
From The Wall Street Journal ● Oct. 9, 2026
In Kanazawa, workers dressed in full-body overalls haul large blocks of ice across the factory floor, before starting on the delicate work of carving perfect spheres, cubes and rectangular blocks with cut corners.
From Barron's ● Sep. 6, 2026
The rectangular map is based on the projection first described by Scottish cartographer James Gall in 1855.
From BBC ● Sep. 5, 2026
The chain is set to introduce this month a rectangular pie geared toward individual orders.
From The Wall Street Journal ● Aug. 11, 2026
Take a rectangular carpet and place it on top of the stain.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.