| 释义 |
snow-line
Also snowline.
[f. snow n.1 Cf. G. schneelinie, Sw. snölinie.]
1. The general level on mountains, etc., above which the snow never completely disappears; the lower limit of perpetual snow, or (more rarely) of snow at a particular season.
1835Partington's Brit. Cycl., Arts & Sci. II. 712/2 The snow-line, or plane of perpetual snow, is the elevation at which mountains are covered with perpetual snow. 1845Darwin Voy. Nat. xi. (1852) 245 As the snow-line is so low in Tierra del Fuego, we might have expected that many of the glaciers would have reached the sea. 1875J. Croll Climate & T. ii. 28 If those currents were warm, they would elevate the snow-line above themselves.
fig.1839–52Bailey Festus 468 My thought of thee Above all passionate fire-peaks and above The sacred snowline of my heart. 1902Westm. Gaz. 20 Dec. 2/2 Mr. Haldane..viewing men and things from above his snow-line.
2. (See quot.)
1898Morris Austral Eng. 425 In pastoralists' language of New Zealand, ‘above the snow-line’ is land covered by snow in winter, but free in summer. |