pregion

Pregion is a term encountered in various niche contexts but it does not have a single, widely accepted definition. In regional planning and geography, pregion is sometimes used to refer to a preliminary or potential region that precedes formal boundaries. In GIS and data analysis, pregion can denote a computational region defined by criteria such as proximity, density, or other attributes, used as a provisional unit in models or visualizations. The term appears to be a portmanteau formed from 'pre-' or 'pseudo-' with 'region', signaling a non-final or exploratory geographic unit.

Because of its informal status and context dependence, its meaning varies between disciplines and even among authors within the same field. When encountering the term, readers should consult the original source for the precise definition and scope. Related terms include region, subregion, functional region, and pseudo-region, though each has its own specific meaning. No official encyclopedia entry standardizes pregion at present.