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Longman Dictionary of Contemporary English
▪ Horne then independently investigated glacial deposits.
▪ At the base there is a locally derived ground moraine that may be a remnant glacial deposit of much greater antiquity.
▪ Base-of-overburden samples may be taken where glacial deposits are widespread or there is reason to suspect transport of elements of interest.
▪ Some unnecessarily tricky camera work early on is taxing, as is the film's glacial pace.
▪ Indeed, the entire rescue operation seems to have proceeded at a glacial pace.
▪ Attempts to light a fire in the glacial dining-room had to be abandoned when it smoked out the house.
▪ But we are no longer limited by the glacial rate of natural genetic innovation.
▪ Davis, himself, paved the way for this when he admitted the existence of arid and glacial cycles of erosion.
▪ I am thinking geologic time, or at the very briefest, glacial.
▪ In spite of the glacial air conditioning and his recent bath, his face was covered with sweat.
▪ It was decided to flood the glacial valley of Vyrnwy at the south-western end of the Berwyn Mountains.
▪ Some unnecessarily tricky camera work early on is taxing, as is the film's glacial pace.
The Collaborative International Dictionary

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.

  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.

Douglas Harper's Etymology Dictionary

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


a. 1 of, or relating to glaciers 2 (context figuratively English) very slow 3 cold and icy 4 having the appearance of ice 5 cool and unfriendly n. A glacial period

  1. adj. 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]


Usage examples of "glacial".

So the aerolites, or glacial boulders, or polished stone weapons of an extinct race, which looked like aerolites, were the children of Ouranos the heaven, and had souls in them.

March 1896, matrimonial gift of Matthew Dillon: a dwarf tree of glacial arborescence under a transparent bellshade, matrimonial gift of Luke and Caroline Doyle: an embalmed owl, matrimonial gift of Alderman John Hooper.

And perhaps not a great deal more than ten thousand years before a mile-high wall of ice had reared up not too far to the north, perhaps close enough for a man who stood where his house now sat to have seen the faint line of blueness that would have been the top of that glacial barrier.

As exemplifying the effects of climatal changes on distribution, I have attempted to show how important has been the influence of the modern Glacial period, which I am fully convinced simultaneously affected the whole world, or at least great meridional belts.

We must have had some such normal notions to fall back upon as our eyes swept that limitless, tempest-scarred plateau and grasped the almost endless labyrinth of colossal, regular, and geometrically eurythmic stone masses which reared their crumbled and pitted crests above a glacial sheet not more than forty or fifty feet deep at its thickest, and in places obviously thinner.

The bones, which had undergone river transport, were recovered from an Early Wisconsin glacial floodplain dated at 80,000 years B.

Her hair had been bound into long dreadlocks, each of them dyed a different shade, ranging from a deep lavender to pale blues and greens to pure white, so that it almost seemed that her hair had been formed from glacial ice.

How were they going to find food and forage, and, more important, enough drinkable water for themselves, a wolf, and two horses while crossing a frozen expanse of glacial ice?

Christmas is upon you, with its conventions of peace and good will, you will find yourself in for a glacial epoch of cold, unforgiving hostility, with an occasional Etna flare of open warfare.

Nars migrate in the winter months southward from the Ionium Sea on the glacial currents.

Atlantic we almost everywhere find the glacial waste here and there accumulated near the margin of the sea in the complicated sculptured outlines which are assumed by kame sands and gravels.

The seasonal streams end rivers fed by glacial melt cut through the deep loess, and often through the sedimentary rock to the crystalline granite platform underlying the continent.

Upon those dull and somber shores passed a spectral row of the mammifers of early days, the great Liptotherium found in the cavernous hollow of the Brazilian hills, the Mesicotherium, a native of the glacial regions of Siberia.

Seth does not remember where he developed the impression that wolves have eyes this color, glacial blue, an outward aspect of beauty and tranquillity concealing a teeming, unmanaged spirit.

As soon as the warder opened the door, the Vicereine felt bewitched by a glacial breath of wind.