单词 | knife-edge ridge |
释义 | > as lemmasknife-edge ridge b. transferred and figurative, esp. a sharp crest of rock, ice, sand, or the like. Also attributive, as knife-edge ridge. ΘΚΠ the world > space > shape > sharpness of edge or point > [noun] > sharp edge edgeOE facea1382 cutting edge1825 knife-edge1871 knife-blade1902 the world > space > relative position > condition of being external > edge, border, or margin > [noun] > formed by meeting of two surfaces arris1437 piend1715 edge1823 knife-edge1871 1871 L. Stephen Playground of Europe (1894) v. 120 Balancing ourselves on a knife-edge of ice between two crevasses. 1897 Pall Mall Mag. Aug. 524 She had come to the party..on the knife-edge of anticipation and alarm. 1907 Westm. Gaz. 26 Nov. 3/2 The road thereto lies along a ‘knife-edge’. 1925 W. J. Miller Introd. Physical Geol. viii. 252 A knife-edge ridge may also develop where glaciers in two parallel valleys erode and steepen the valley sides until only a very sharp divide separates the valleys. 1925 E. F. Norton in E. F. Norton et al. Fight for Everest: 1924 i. ii. 31 A ridge which begins in a knife-edge of rock worthy of the Chamounix Aiguilles. 1945 S. J. Baker Austral. Lang. iii. 58 Knife edges, as certain razor-back sandhills are known. 1963 Times 24 Jan. 10/3 Mr. John Brass, chairman of the West Midlands Division of the N.C.B., said yesterday that west Midland coal supplies were poised ‘on a knife edge’ at the present. 1964 C. Willock Enormous Zoo v. 74 The immediate foreground beneath the sandstone cliff..was eroded into a series of gullies and knife-edges like row upon row of yellowed shark's teeth. 1969 C. R. Longwell et al. Physical Geol. xii. 266/2 An arête is a jagged, knife-edge ridge created where two groups of cirque glaciers have eaten into the ridge from both sides. 1971 Country Life 25 Feb. 408/3 The ridge goes easily at first on firm snow..and finally ends in a snow knife-edge. 1972 Guardian 18 Feb. 24/5 The Government's knife-edge victory for the European Communities Bill in the Commons last night. 1974 Times 12 Oct. 1/1 A government with a knife-edge majority. 1974 Times 12 Oct. 1/2 Mr Wilson intends to govern on a parliamentary knife-edge for at least two or three years. < as lemmas |
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