Published online by Cambridge University Press: 20 January 2017
The term "cryo-conditioning," proposed by the authors for classifying specific landform association in periglacial landscapes, needs to be defined more precisely. A starting point could be the proper understanding of the term "Cryo-" in the various compound words found in various disciplines. This is also important for a correct understanding of the proposed concepts, since it concerns one of the most important processes in nature: the phase transition of water between solid and liquid. Cold-temperate transition surfaces in polythermal glaciers and at the permafrost base in their forelands can act as a specific hub between the glacial and periglacial domains.