(often initial capital letters) the glacial epoch, especially the Pleistocene Epoch.
another name for glacial period
International Childbirth Education Association
noun 1. a large, hooklike device for setting in ice to anchor a vessel or to provide a hold for a hawser in warping it along.
noun 1. a structure built in a river upstream from a bridge pier or the like for protection against drifting ice.
noun 1. a mountaineering tool combining an adzlike blade and a pick on the head of a long wooden handle, with a spike on the end, used for cutting into ice and for support on icy surfaces.