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Dictionary


quad•ri•lat•er•al



Pronunciation: (kwod"ru-lat'ur-ul), [key]
adj.
having four sides.

n.
1. a plane figure having four sides and four angles.
2. something of this form.
3. Geom.
a. a figure formed by four straight lines that have six points of intersection.
b. a polygon with four sides.
4. the space enclosed between and defended by four fortresses.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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