definition of
[glacial]

[1] #1 glacial a. relating to or derived from a glacier; "glacial deposit". wn

[2] #2 glacial s. [frigid, frosty, frozen, icy, wintry] devoid of warmth and cordiality; expressive of unfriendliness or disdain; "a frigid greeting"; "got a frosty reception"; "a frozen look on their faces"; "a glacial handshake"; "icy stare"; "wintry smile". wn

[3] #3 glacial s. [arctic, frigid, gelid, icy, polar] extremely cold; "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather". wn