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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Glacial \Gla"cial\, adjective [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.
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}.
From WordNet (r) 3.0 (2006) [wn]:
adjective
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}, {glacial}, {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}, {glacial}, {icy}, {polar}]
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Definitions retrieved from the Open Source DICT Webster's English and WordNet 3.0 dictionaries. Click here for database copyright information.
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