ETYM Latin area a broad piece of level ground. Related to Are.
The size of a surface. It is measured in square units, usually square inches (in2), square yards (yd2), or square miles (mi2). Surface area is the area of the outer surface of a solid.
The areas of geometrical plane shapes with straight edges are determined using the area of a rectangle. Integration may be used to determine the area of shapes enclosed by curves.
1. A part of a structure having some specific characteristic or function.
2. A part of an animal that has a special function or is supplied by a given artery or nerve; SYN. region.
3. A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography); SYN. country.
4. A subject of study.
5. The extent of a 2-dimensional surface enclosed within a boundary; SYN. expanse, surface area.