(ˈ)kwä|draŋgyələ(r), -raiŋ- sometimes (ˈ)kwȯ|- adjective
Etymology: Late Latin quadrangularis, from quadrangulum quadrangle + Latin -aris -ar
: having four angles and consequently four sides : tetragonal
the interior structure was composed of a quadrangular skeleton of stout poles lashed together — American Anthropologist
• qua·dran·gu·lar·ly adverb