Quadrangle

kwod′rang-gl, n. a square surrounded by buildings: ( geom. ) a plane figure having four equal sides and angles: in the jargon of palmistry, the space between the line of the heart and that of the head.— adj. Quadrang′ular , of the form of a quadrangle.— adv. Quadrang′ularly . [Fr.,—L. quadrangulum — quatuor , four, angulus , an angle.]