a. [ L. glacialis, from glacies ice: cf. F. glacial. ]
Glacial acid (Chem.),
Glacial drift (Geol.),
Glacial epoch
Glacial period
Glacial theory
Glacial hypothesis
n. One who attributes the phenomena of the drift, in geology, to glaciers. [ 1913 Webster ]
a. (Geol.)
a. (Geol.) Prior to the glacial or drift period. [ 1913 Webster ]
a. Pertaining or belonging to the under side of a glacier; being beneath a glacier;