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Noun
After the birds understood this game, the researchers started showing them sets of shapes that included squares, parallelograms, or irregular quadrilaterals.—Nell Greenfieldboyce, NPR, 12 Apr. 2025 Penrose tiles are a pair of simple quadrilaterals that, with a careful set of rules, tile the plane without allowing translational symmetry.—Quanta Magazine, 23 May 2023
Adjective
Under the Hood Nvidia Edify uses something called ‘quad mesh’ models where 3D objects are made up of quadrilateral or four-sided polygons.—John Werner, Forbes, 26 Nov. 2024 Other such challenge problems have shown that inaccurate codes are not necessarily the core issue—participants often made simplifying assumptions that were invalid or selected the wrong type of element out of the multitude of available variations of the original triangle and quadrilateral.—Manil Suri, Scientific American, 25 June 2024 See All Example Sentences for quadrilateral
Word History
Etymology
Noun
Latin quadrilaterus four-sided, from quadri- + later-, latus side
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