un glacial


of or pertaining to glaciers or ice sheets.
resulting from or associated with the action of ice or glaciers: glacial terrain.
characterized by the presence of ice in extensive masses or glaciers.
bitterly cold; icy: a glacial winter wind.
happening or moving extremely slowly: The work proceeded at a glacial pace.
icily unsympathetic or immovable: a glacial stare; glacial indifference.
Chemistry. of, pertaining to, or tending to develop into icelike crystals: glacial phosphoric acid.

1650–60; < Latin glaciālis icy, equivalent to glaci(ēs) ice + -ālis -al1

glacially, adverb
nonglacial, adjective
nonglacially, adverb
unglacial, adjective
unglacially, adverb

4. chill, freezing, frigid, wintry. 6. forbidding, unfriendly, hostile.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
glacial (ˈɡleɪsɪəl, -ʃəl)
1.  characterized by the presence of masses of ice
2.  relating to, caused by, or deposited by a glacier
3.  extremely cold; icy
4.  cold or hostile in manner: a glacial look
5.  (of a chemical compound) of or tending to form crystals that resemble ice: glacial acetic acid
6.  very slow in progress: a glacial pace

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1656, from Fr. glacial, from L. glacialis "icy, frozen, full of ice," from glacies "ice," from PIE base *gel- "cold" (cf. L. gelu "frost"). Geological sense apparently coined by Professor E. Forbes, 1846.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
glacial   (glā'shəl)  Pronunciation Key 
  1. Relating to or derived from a glacier.

  2. Characterized or dominated by the existence of glaciers, as the Pleistocene Epoch.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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