About The Word Quadrilateral

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Quadrilateral

Quadrilateral Meaning & Definition
Quadrilateral Definition And Meaning

What's The Definition Of Quadrilateral?

[n] a four-sided polygon
[adj] having four sides

Synonyms | Synonyms for Quadrilateral: four-sided | many-sided | multilateral | quadrangle | tetragon

Related Terms | Find terms related to Quadrilateral:

See Also | parallelogram | polygon | polygonal shape | trapezium | trapezoid

Quadrilateral In Webster's Dictionary

\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.
\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. 2. An area defended by four fortresses supporting each other; as, the Venetian quadrilateral, comprising Mantua, Peschiera, Verona, and Legnano. {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.

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