gla·cial /ˈgleʃəl/
 (a.)冰的,冰河的,冰河時代的,冰冷的


 Gla·cial a.
 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena.
 2. Chem. Resembling ice; having the appearance and consistency of ice; -- said of certain solid compounds; as, glacial phosphoric or acetic acids.
 Glacial acid Chem., an acid of such strength or purity as to crystallize at an ordinary temperature, in an icelike form; as acetic or carbolic acid.
 Glacial drift Geol., earth and rocks which have been transported by moving ice, land ice, or icebergs; bowlder drift.
 Glacial epoch or Glacial period Geol., a period during which the climate of the modern temperate regions was polar, and ice covered large portions of the northern hemisphere to the mountain tops.
 Glacial theory or Glacial hypothesis. Geol. See Glacier theory, under Glacier.

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 glacial
      adj 1: relating to or derived from a glacier; "glacial deposit"
      2: 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" [syn: frigid,
          frosty, frozen, icy, wintry]
      3: extremely cold; "an arctic climate";  "a frigid day"; "gelid
         waters of the North Atlantic"; "glacial winds"; "icy
         hands"; "polar weather" [syn: arctic, frigid, gelid,
          icy, polar]