quadrilateral

1 of 2

noun

quad·​ri·​lat·​er·​al ˌkwä-drə-ˈla-t(ə-)rəl How to pronounce quadrilateral (audio)
: a polygon of four sides

quadrilateral

2 of 2

adjective

: having four sides

Examples of quadrilateral in a Sentence

Recent Examples on the Web
Noun
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 Design chops: Located on the eastern end of the charming Brera neighborhood, close to the city’s famed fashion quadrilateral, the hotel is tucked away in an early 20th-century palazzo that until recently was the showroom and offices of designer Philipp Plein. Jackie Cooperman, Robb Report, 9 Mar. 2023
Adjective
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 The official said the quadrilateral group aims to conduct more joint patrols in the coming months and years and that these patrols will add more capabilities over time. Peter Martin and Ben Westcott / Bloomberg, TIME, 3 May 2024 See all Example Sentences for quadrilateral 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'quadrilateral.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun

Latin quadrilaterus four-sided, from quadri- + later-, latus side

First Known Use

Noun

1650, in the meaning defined above

Adjective

1656, in the meaning defined above

Time Traveler
The first known use of quadrilateral was in 1650

Dictionary Entries Near quadrilateral

Cite this Entry

“Quadrilateral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadrilateral. Accessed 5 Nov. 2024.

Kids Definition

quadrilateral

1 of 2 adjective
quad·​ri·​lat·​er·​al ˌkwäd-rə-ˈlat-ə-rəl How to pronounce quadrilateral (audio)
-ˈla-trəl
: having four sides

quadrilateral

2 of 2 noun
: a polygon with four sides and four angles

Medical Definition

quadrilateral

adjective
quad·​ri·​lat·​er·​al ˌkwäd-rə-ˈlat-ə-rəl, -ˈla-trəl How to pronounce quadrilateral (audio)
: having four sides
a quadrilateral muscle
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