Glacial

glā′shi-al, adj. icy: frozen: pertaining to ice or its action, esp. to glaciers.— ns. Glā′cialist , one who attributes the phenomena of the drift in geology to the action of glaciers; Glāciā′tion , the act of freezing: ice: the proce of becoming covered with glaciers. [Fr.,—L. glacial is — glacies , ice.]