| 单词 | hydrolaccolith | 
| 释义 | > as lemmashydrolaccolith   hydrolaccolith  n.  Brit.  , U.S.  				 [from its resemblance to a laccolith n.]			 Physical Geography an underground mass of ice in a region of permafrost which tends to increase in size and thrust up the overlying soil forming a mound; a mound so formed, esp. a pingo.ΘΚΠ the world > the earth > water > ice > land ice > 			[noun]		 > mass of ice in permafrost region ice wedge1865 hydrolaccolith1955 1955    M. Hollander tr.  P. H. Kuenen Realms Water v. 220 		(caption)	  				Hydrolaccolith or hummock caused when ground-water under artesian pressure is checked by formation of layers of ice. 1961    L. D. Stamp Gloss. Geogr. Terms 244/2  				The pingos in East Greenland but not those in the Mackenzie delta are hydrolaccoliths. 1968    R. W. Fairbridge Encycl. Geomorphol. 845/2  				The genetic term hydrolaccolith, which applies to all ice-intrusions, is not just synonymous with pingo. 1970    E. Watson tr.  J. Tricart Geomorphol. Cold Environments  ii. i. 78  				These ice masses and the hills which they raise are called hydrolaccoliths. < as lemmas  | 
	
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