water parting

Noun
  1. A ridge of land that separates two adjacent river systems (synset 108697107)
    is a type of: line - a spatial location defined by a real or imaginary unidimensional extent
    subtypes: continental divide - the watershed of a continent (especially the watershed of North America formed by a series of mountain ridges extending from Alaska to Mexico)
    specific instances: great divide - that part of the continental divide formed by the Rocky Mountains in the United States
    same as: divide, watershed

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