Definition of “quadrilateral” - English Dictionary

british dictionary

(Definition of “quadrilateral” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“quadrilateral” in American English

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quadrilateralnoun [ C ]

/ˌkwɑ·drəˈlæt̬·ər·əl/

geometry a flat shape with four straight sides

(Definition of “quadrilateral” from the Cambridge Academic Content Dictionary © Cambridge University Press)