QUADRILATERAL • DICCIONARIO INGLES.COM • Definition of Quadrilateral

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noun

Quadrilateral n.

(Geom.) A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines.

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.

adjective

Quadrilateral adj. Having four sides, and consequently four angles; quadrangular.

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Etymology of 'Quadrilateral'

Collaborative International Dictionary of English 0.48

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"Quadrilateral" Quotes from Famous Books

... suitable, the insect hoists itself on tiptoe so as to give full scope to the play of its mechanism; it brings the tip of the belly a little forward; and the entire ovipositor—inoculating-needle and scabbard—stands perpendicular to the cocoon, in the center of the quadrilateral described by the four hind legs, an eminently favorable position for obtaining the maximum effect. For some time, the whole of the awl bears on the cocoon, feeling all round with its point, groping about; then, suddenly, the ...

— The Life of the Fly - With Which are Interspersed Some Chapters of Autobiography • J. Henri Fabre

... and saws wood," said Lincoln "He don't talk a great deal, but he fights. I can't help feeling hopeful to-night, for it seems to me we have the enemy in a fix. You've heard me talk of the shrinking quadrilateral, which is the rebel States, ...

— The Path of the King • John Buchan

... because they declare that it is both a discovery and a revelation, an achievement and a rescue. There are vigorous and rapidly growing popular movements of the day which rest their summation of faith on the quadrilateral of an inerrant and verbally inspired Scripture, the full deity of Jesus Christ, the efficacy of His substitutionary atonement, the speedy second coming of the Lord. No sane person can suppose that these cults succeed because of the ethical insight, the spiritual sensitiveness, the intellectual ...

— Preaching and Paganism • Albert Parker Fitch

... formed a quadrilateral camp, as on other nights, but had lain down to rest in the formation for attack they had assumed in the afternoon. Every fifty yards behind the thorn-bushes were double sentries. Every hundred yards a patrol with an officer was to be met. Fifty yards in rear of this line lay the battalions, ...

— The River War • Winston S. Churchill

... reasons for the cessation of warlike operations of a nature to convince men of their irresistible weightiness. A great deal was said about the strength of "the Quadrilateral," and of the impregnability of the position which it formed,—as if there ever had existed a military position which could not be carried or turned, or out of which its defenders could not be bought, or forced, or starved! The strength of the Quadrilateral was as well known to the Emperor ...

— Atlantic Monthly Volume 7, No. 39, January, 1861 • Various

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