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quadrilateral a. 四边形,四边地,四角地 四边形,四边地,四角地 quadrilateral四边形 quadrilateral四边形 quadrilateral adj 1: having four sides [ synonym: { quadrilateral}, { four- sided}] n 1: a four- sided polygon [ synonym: { quadrilateral}, { quadrangle}, { tetragon}] Quadrilateral \ Quad` ri* lat" er* al\, a. [ L. quadrilaterus: cf. F. quadrilat[` e] re, quadrilat[' e] ral. See { Quadri-} and { Lateral}.] Having four sides, and consequently four angles; quadrangular. [ 1913 Webster]
Quadrilateral \ Quad` ri* lat" er* al\, n. 1. ( Geom.) A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines. [ 1913 Webster] 2. An area defended by four fortresses supporting each other; as, the Venetian quadrilateral, comprising Mantua, Peschiera, Verona, and Legnano. [ 1913 Webster] { Complete quadrilateral} ( Geom.), the figure made up of the six straight lines that can be drawn through four points, A, B, C, I, the lines being supposed to be produced indefinitely. [ 1913 Webster] 51 Moby Thesaurus words for " quadrilateral": bifacial, bilateral, biquadratic, cube- shaped, cubed, cubic, cubiform, cuboid, diced, dihedral, flanked, four, four- legged, four- rayed, foursquare, handed, lateral, many- sided, multilateral, oblong, one- sided, orthogonal, polyhedral, quadrangular, quadrate, quadric, quadriform, quadrinomial, quadrivalent, quadruped, quartic, quartile, quaternary, rectangular, rhombic, rhomboid, sided, square, tetractinal, tetrad, tetragonal, tetrahedral, tetravalent, three- sided, trapezohedral, trapezoid, trihedral, trilateral, triquetrous, two- sided, unilateral
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