quadrangle

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Mathematics Quadrilateral.
2. n. A rectangular area surrounded on all four sides by buildings.
3. n. The buildings bordering this area.
4. n. The area of land shown on one atlas sheet charted by the U.S. Geological Survey.

Century Dictionary and Cyclopedia

1. n. A plane figure having four angles; a foursquare figure; a quadrilateral; in mod. geom., a plane figure formed by six lines intersecting at four points.
2. n. A square or oblong court nearly or quite surrounded by buildings: an arrangement common with public buildings, as palaces, city halls, colleges, etc.
3. n. In palmistry, the space between the line of the heart and that of the head.
4. n. A square block of buildings.
5. n. Any square block, as of stone.
6. n. A region measuring 15′ lat. by 15′ long. (or 30′ lat. by 30′ long., or 1° lat, by 1° long., according to the density of tho population) as shown on an atlas sheet of the United States Geological Survey.

Wiktionary

1. n. geometry A geometric shape with four angles and four straight sides; a four-sided polygon.
2. n. A courtyard which is quadrangular.
3. n. The buildings forming the border of such a courtyard.

GNU Webster's 1913

1. n. (Geom.) A plane figure having four angles, and consequently four sides; any figure having four angles.
2. n. A square or quadrangular space or inclosure, such a space or court surrounded by buildings, esp. such a court in a college or public school in England.

WordNet 3.0

1. n. a four-sided polygon
2. n. a rectangular area surrounded on all sides by buildings