2-dimensional

n a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography) n a subject of study n a part of an animal that has a special function or is supplied by a given artery or nerve n a particular environment or walk of life n a part of a structure having some specific characteristic or function n the extent of a 2-dimensional surface enclosed within a boundary

the roundness of a 2-dimensional figure

the extent of a 2-dimensional surface enclosed within a boundary n