Adjective
Having four angles, and consequently four sides; tetragonal.
Source: Webster's dictionaryWith spots quadrangular of diamond form, Ensanguined hearts, clubs typical of strife, And spades, the emblems of untimely graves. William Cowper
A new type of grave, quadrangular burial mounds, began to develop. Source: Internet
It has an octagonal plan with a quadrangular structure that once provided scenic views of the countryside. Source: Internet
BERESFORD -- Mount Vernon/Plankinton/Corsica-Stickney split its dual meets at the Beresford quadrangular, but nearly came away with a pair of wins. Source: Internet
He remarks that the temple of Vesta was the only ancient temple in Rome to be built in a round shape and covered with a dome to protect the sacred fire from rain, other temples being quadrangular. Source: Internet
It has a rhomboidal shape, with four towers: two quadrangular at the corners and the other two are connected by curtains and are cylindrical. Source: Internet