'Glacial' definitions:

Definition of 'glacial'

From: WordNet
adjective
Relating to or derived from a glacier; "glacial deposit"
adjective
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, glacial, icy, wintry]
adjective
Extremely cold; "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather" [syn: arctic, frigid, gelid, glacial, icy, polar]

Definition of 'Glacial'

From: GCIDE
  • Glacial \Gla"cial\, a. [L. glacialis, from glacies ice: cf. F. glacial.]
  • 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; esp., pertaining to glaciers; as, glacial phenomena. --Lyell. [1913 Webster]
  • 2. (Chem.) Resembling ice; having the appearance and consistency of ice; -- said of certain solid compounds; as, glacial phosphoric or acetic acids. [1913 Webster]
  • 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. [1913 Webster]

Synonyms of 'glacial'

From: Moby Thesaurus