quadrilateral

== English == === Etymology === Learned borrowing from Latin quadrilaterus + -al. === Pronunciation === (UK) IPA(key): /ˌkwɒdɹɪˈlætəɹəl/ (US, Canada) IPA(key): /ˌkwɑdɹəˈlætəɹəl/, [ˌkʰw̥ɑd̠ɹ̠˔ʷɪ̈ˈlæɾəɹəɫ]; enPR: kwäd'rə-lăt′ər-əl Hyphenation: quad‧ri‧lat‧er‧al Rhymes: -ætəɹəl === Noun === quadrilateral (plural quadrilaterals) (geometry) A polygon with four sides. An area defended by four fortresses supporting each other. ==== Synonyms ==== ==== Hyponyms ==== See also Thesaurus:quadrilateral ==== Coordinate terms ==== ==== Derived terms ==== ==== Translations ==== === Adjective === quadrilateral (not comparable) Having four sides. ==== Derived terms ==== ==== Translations ==== == Portuguese == === Pronunciation === Rhymes: (Brazil) -aw, (Portugal) -al Hyphenation: qua‧dri‧la‧te‧ral === Adjective === quadrilateral m or f (plural quadrilaterais) quadrilateral (having four sides) Synonym: quadrilátero === Further reading === “quadrilateral”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026 “quadrilateral”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026