demarcation line

Thesaurus

Noun

1.

demarcation line - the boundary of a specific area demarcation, limit edge - the outside limit of an object or area or surface; a place farthest away from the center of something; "the edge of the leaf is wavy"; "she sat on the edge of the bed"; "the water's edge" boundary, bounds, bound - the line or plane indicating the limit or extent of something city limit, city limits - the limits of the area occupied by a city or town upper limit - the limit on the upper (or northernmost) side of something lower limit - the limit on the lower (or southernmost) side of something three-mile limit - the limit of a nation's territorial waters