Glacial :: Glacial (a.) Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena..
Glacial :: Glacial (a.) Resembling ice; having the appearance and consistency of ice; -- said of certain solid compounds; as, glacial phosphoric or acetic acids..
Glacialist :: Glacialist (n.) One who attributes the phenomena of the drift, in geology, to glaciers..
Preglacial :: Preglacial (a.) Prior to the glacial or drift period.
Subglacial :: Subgenus (n.) A subdivision of a genus, comprising one or more species which differ from other species of the genus in some important character or characters; as, the azaleas now constitute a subgenus of Rhododendron..