quadrilateral: Meaning and Definition of
Pronunciation: (kwod"ru-lat'ur-ul), [key]
- having four sides.
- a plane figure having four sides and four angles.
- something of this form.
- a figure formed by four straight lines that have six points of intersection.
- a polygon with four sides.
- the space enclosed between and defended by four fortresses.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.