- A conical or crescent-- shaped opening in the wall of a cave, formed by the downward and lateral erosion of a stream on the floor of a passage .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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meander — 1. Overdeveloped and selfexaggerated bend is a stream course either on the surface or underground, caused by more erosion on the outside than on the inside of a bend due to natural wash of the flow. Undergound meanders commonly originate… … Lexicon of Cave and Karst Terminology
conical wall niche — See meander niche … Lexicon of Cave and Karst Terminology
crescentic wall niche — See meander niche … Lexicon of Cave and Karst Terminology
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