twodimensionally

Twodimensionally is an adverb meaning in two dimensions, that is, within a plane described by two coordinates, as opposed to in three dimensions. It is formed from the adjective two-dimensional.

In formal writing, the preferred forms are two-dimensional and two-dimensionally (hyphenated). The form twodimensionally is rare and generally avoided in polished prose, though it may appear in technical contexts, software identifiers, or data formats where spaces are not allowed.

In mathematics and geometry, two-dimensional space refers to a plane; a two-dimensional projection reduces a scene to two coordinates (for example, x and y). In computer graphics and imaging, two-dimensional representations include raster images and vector graphics on a plane. In data structures, two-dimensional arrays or matrices are indexed by two coordinates, such as row and column.

Two-dimensional concepts contrast with three-dimensional space, which adds depth as a third coordinate (z). The distinction underpins many disciplines, from theoretical geometry to practical applications in rendering, mapping, and data visualization. The term twodimensionally, when used, typically functions as a specialized or informal variant rather than standard prose.

See also: two-dimensional, 2D, dimensionality, plane, Cartesian coordinate system, projection.