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单词 glacis
释义

glacisn.

/ˈɡleɪsɪs//ɡlasi/
Etymology: < French glacis (first recorded in the 16th cent.), originally ‘a place made slipperie by wet lately fallen and frozen on’ (Cotgrave), and related to Old French glacier to slip, slide (see glace v.). In medieval Latin (c1270) glatia is found with the meaning of glacis (in fortification).
1. A gently sloping bank (see quot. 1712).In modern use probably transferred from sense 2.
ΘΚΠ
the world > the earth > land > landscape > high land > slope > [noun] > gentle
glacis1672
cuesta1818
1672 Philos. Trans. (Royal Soc.) 7 4081 That so the water..spreading it self upon the glacis or slope..may not spoil the Causey.
1712 J. James tr. A.-J. Dézallier d'Argenville Theory & Pract. Gardening 37 A Slope that lies under the Diagonal of a Square, or less than 45 Degrees, they [the French] term Glacis.
1787 M. Cutler Jrnl. 14 July in W. P. Cutler & J. P. Cutler Life, Jrnls. & Corr. M. Cutler (1888) I. 275 We were walking on the northern side of the Garden, upon a beautiful glacis.
1830 C. Lyell Princ. Geol. I. 245 When nothing appears above water but the higher part of that sloping glacis which we before described.
1892 R. L. Stevenson Across Plains ii. 79 The foam..mounts in an instant to the ridge of the sand glacis.
2.
a. Fortification. ‘The parapet of the covered way extended in a long slope to meet the natural surface of the ground, so that every part of it shall be swept by the fire of the ramparts’ (G. E. Voyle Mil. Dict.). Also figurative.
ΘΚΠ
society > armed hostility > defence > defensive work(s) > earthwork or rampart > [noun] > parapet extended in long slope
glacis1688
1688 J. S. Fortification 27 The Glacis or Esplanade, a kind of Parapet which loseth itself insensibly, level with the Earth.
1692 N. Luttrell Diary in Brief Hist. Relation State Affairs (1857) II. 486 The enemy..made 4 attacks on the glacis of the counterscarp.
1755 T. Forbes in C. Gist Jrnls. (1893) 151 The Soldiers Barracks..are built between the Stockadoes and the Glacis of the Fort.
a1757 P. H. Bruce Memoirs (1782) i. 15 Upon our breaking ground on the glacis, or covered way, I was with the pioneers.
1823 Ld. Byron Don Juan: Canto VIII xxxiv. 128 The rest, who kept their valiant faces And levelled weapons still against the glacis.
c1870 J. Hay Banty Tim 32 I sprawled on that cursed glacee.]
1879 W. D. Howells Lady of Aroostook iv. 40 The black guns looked out over the neatly shaven glacis.
1955 Times 3 Aug. 9/2 This view of east Germany as part of Russia's defensive glacis has never been dropped.
1960 Observer 7 Feb. 7/6 The countries of Eastern Europe..form the glacis between the Soviet Union and the West.
b. In full glacis plate. A sloping armour-plate protecting an opening, etc., in a ship.
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > parts of vessels > body of vessel > [noun] > sheathing > armour-plating
belting1567
armour plate1683
belt1822
armour1838
armour plating1860
cuirass1860
belt armour1866
water-line armour1884
glacis plate1889
1889 J. J. Welch Text Bk. Naval Archit. xiv. 149 These openings are generally further protected by working sloped armour plates—called glacis plates—around them about 3″ thick.
1933 Jane's Fighting Ships 520 Armour (Krupp): 2″ deck (amidships), 3/ 4″ deck (ends), 31/ 2glacis to engine room hatches.
3. Building. (See quot. 1728.)
ΚΠ
1728 E. Chambers Cycl. (at cited word) The Glacis of the Cornich is an easy, imperceptible Slope in the Cymaise of a Cornich, to promote the Descent and draining off of the Rain-Water.
4. attributive, as glacis-form; glacis-shaped adj.
ΚΠ
1844 Hull Dock Act 65 The Company shall slope off the eastern side of the said wharf..in an oblique or glacis form.
1884 Instr. Mil. Engin. (ed. 3) I. ii. 35 When made glacis-shaped these screens are more difficult to cut through than when shaped like an ordinary parapet.
This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2019).
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