quadrilateralEnglishOxford Dictionary of Englishquadrilateral /ˌkwɒdrɪˈlat(ə)r(ə)l / ▸ noun a four-sided figure. ▸ adjective having four straight sides. – ORIGIN early 17th century: from Latin quadrilaterus (from quadri- ‘four’ + latus, later- ‘side’) + -al.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
