a survey, map, or plan on a large scale (Usually ¹⁄₂₅₀₀ of the linear measure of the ground, or twenty-five inches to the mile or about an inch to the acre) so as to represent the relative positions and dimensions of objects and estates exactly; – distinguished from a topographical map, which exaggerates the dimensions of houses and the breadth of roads and streams, for the sake of distinctness.