Definition: Overnarrowness is a condition in which a river or stream narrows significantly compared to its usual size or width. This can occur due to various factors such as erosion, sedimentation, changes in climate, or other natural processes. The term "overnarrow" was first used by the French geologist and hydrologist Jean-Baptiste Marie de Montespan in 1829. He described a phenomenon where a river narrows significantly compared to its original width due to
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