
1) German geographic term
Found on
https://www.crosswordclues.com/clue/knickpoint

A knickpoint is a term in geomorphology to describe a location of a river or channel where there is a sharp change in channel slope, such as a waterfall or lake. Knickpoints reflect different conditions and processes on the river often caused by previous erosion due to glaciation or variance in lithology. ==Formation== Knickpoints are formed by th...
Found on
http://en.wikipedia.org/wiki/Knickpoint

discontinuity in river profile due to intersection of new erosion curve
Found on
http://phrontistery.info/k.html

An abrupt change in slope. A point on a stream profile where a change in gradient occurs. This could
Found on
http://www.encyclo.co.uk/local/22392
No exact match found.