Krenner
Krenner can refer to several things. In the context of geology, a krenner is a type of rock formation. More specifically, it is a void or cavity within a rock mass. These voids can form through various geological processes, such as dissolution of soluble minerals, fracturing, or the weathering of certain rock types. The size and shape of krenner formations can vary greatly, from small micro-cavities to large underground chambers. Their presence can influence the mechanical properties and hydrological behavior of the rock mass.
In some contexts, Krenner may also be a surname. As with many surnames, its origins are likely
Additionally, "Krenner" could potentially be a term used in a specific technical field or a proprietary name