| 释义 |
upˈheaval
[up- 2.]
1. Geol. The action of raising, or fact of being raised, above the original level, esp. by volcanic action.
1838Lyell Man. Geol. v. 96 Very extensive regions..have been undergoing slow and gradual upheaval. 1862G. P. Scrope Volcanoes 429 The upheaval of the latter strata. 1886Winchell Walks Geol. Field 112 This is the general plan of a mountain of upheaval.
b. An instance of this; an upward displacement of some part of the earth's crust.
1849Dana Geol. xvii. (1850) 675 Some of the upheavals the country has experienced, may have opened fissures. 1876Page Adv. Text-bk. Geol. ii. 39 Upheavals and subsidences occasioned by..volcanic convulsions. 1897E. W. B. Nicholson Golspie 252 These upheavals took place after..the great Ice Age.
c. In general use.
1890Clark Russell Ocean Trag. III. xxviii. 74 A volcanic upheaval of flame. 1908S. E. White Riverman iv, Constantly the logs shifted, and..the men shifted also, avoiding the upheavals.
2. fig. A strong agitation or convulsion of society, etc.; a sudden or violent alteration.
1850McCosh Div. Govt. ii. iii. 250 There have been times of upheaval in the moral world, similar to those periods which geologists describe. 1867C. H. Pearson Hist. Eng. I. 89 It was a general upheaval of peoples. 1887Lowell Democr. 13 There had also been social upheavals before the Reformation.
Hence upˈheavalist, an advocate of the theory that geological changes are due to upheaval.
1862G. P. Scrope Volcanoes 201 Lyell, in his..examination of the question, decided it against the upheavalists. |