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Definition of quadrilateral noun from the Oxford Advanced American Dictionary

 

quadrilateral

 noun
noun
NAmE//ˌkwɑdrəˈlæt̮ərəl//
 
(geometry)
 
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a flat shape with four straight sides
quadrilateral adjective
 
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See quadrilateral in the Oxford Advanced Learner's Dictionary
Check pronunciation: quadrilateral

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