glacial(redirected from Glacials)
Also found in: Dictionary, Thesaurus, Medical.
Related to Glacials: glacial period, Glaciations
1. characterized by the presence of masses of ice
2. relating to, caused by, or deposited by a glacier
3. (of a chemical compound) of or tending to form crystals that resemble ice
intervals of time in the geological history of the earth, characterized by a strong cooling of the climate and the development of extensive continental ice sheets.
Pertaining to an interval of geologic time which was marked by an equatorward advance of ice during an ice age; the opposite of interglacial; these intervals are variously called glacial periods, glacial epochs, glacial stages, and so on.
Pertaining to ice, especially in great masses such as sheets of land ice or glaciers.