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glacial

[gley-shuh l] /ˈgleɪ ʃəl/
adjective
1.
of or pertaining to glaciers or ice sheets.
2.
resulting from or associated with the action of ice or glaciers:
glacial terrain.
3.
characterized by the presence of ice in extensive masses or glaciers.
4.
bitterly cold; icy:
a glacial winter wind.
5.
happening or moving extremely slowly:
The work proceeded at a glacial pace.
6.
icily unsympathetic or immovable:
a glacial stare; glacial indifference.
7.
Chemistry. of, pertaining to, or tending to develop into icelike crystals:
glacial phosphoric acid.
Origin
1650-1660
1650-60; < Latin glaciālis icy, equivalent to glaci(ēs) ice + -ālis -al1
Related forms
glacially, adverb
nonglacial, adjective
nonglacially, adverb
unglacial, adjective
unglacially, adverb
Synonyms
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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British Dictionary definitions for un glacial

glacial

/ˈɡleɪsɪəl; -ʃəl/
adjective
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
Derived Forms
glacially, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for un glacial

glacial

adj.

1650s, "cold, icy," from French glacial, from Latin glacialis "icy, frozen, full of ice," from glacies "ice," probably from PIE root *gel- "cold" (cf. Latin gelu "frost;" see cold (adj.)). Geological sense apparently coined in 1846 by British naturalist Edward Forbes (1815-1854). Related: Glacially.

Online Etymology Dictionary, © 2010 Douglas Harper
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un glacial in Science
glacial
  (glā'shəl)   
  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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