bidimensional

Bidimensional is a term used in mathematics and related disciplines to describe something that has two dimensions, typically length and width. It originates from the prefix bi- meaning two and dimensional, and it is often used as an adjective to characterize plane figures, representations, or data that can be depicted on a two-dimensional plane.

In geometry, a bidimensional space refers to a two-dimensional Euclidean plane, usually denoted R^2. Each point is described by an ordered pair of coordinates (x, y). Distances, angles, and shapes are measured within this plane using the usual Euclidean metric.

Common bidimensional representations include graphs of functions, two-dimensional shapes such as circles and polygons, and two-dimensional arrays in computing, such as images or matrices arranged in height and width. In cartography and computer graphics, two-dimensional projections are used to depict three-dimensional objects on flat surfaces.

Bidimensional objects contrast with tridimensional ones, which introduce depth as a third dimension. Although many real objects are three-dimensional, they can be represented bidimensionally through projections, shadows, or pictorial perspective that imply depth on a flat plane.

In everyday language, two-dimensional or bidimensional is often used to describe flat media like paper or screens. In art and design, techniques such as shading, perspective, and occlusion help convey depth on a bidimensional surface.