nf. glaciation, process of becoming covered in glaciers

(n.) = glaciation ; ice age ; glacial period.
Ex: This digital tapestry outlines the geologic story of continental collision and break-up, mountain-building, river erosion and deposition, glaciation, volcanism, and other events and processes that have shaped the region.
Ex: A bewildering array of information devices must now be exploited as effectively as books were during the ice age of librarianship.
Ex: The world's most recent glacial period began about 110,000 years ago and ended around 12,500 years ago.