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thermokarst
thermokarst n.
Brit. 
/ˈθəːmə(ʊ)kɑːst/
, /ˈθəːmə(ʊ)kɑːst/U.S. /ˈθərmoʊˌkɑrst/
topography in which the melting of permafrost has produced hollows, hummocks, and the like reminiscent of karst. [After Russian termokárst (M. M. Ermolaev 1932, in Trudȳ Soveta po Izuch. proizv. Sil: Ser. yakutsk. 211).] /ˈθərmoʊˌkɑrst/ΘΚΠ
the world > the earth > land > landscape > [noun] > types of terrain
patchwork1865
Mound Region1873
boulder-flat1884
karrenfeld1885
boulder-belt1894
karst land1894
karst1902
felsenmeer1905
stone-field1906
staircasing1911
fundament1928
strewn field1937
thermokarst1943
patterned ground1950
pseudokarst1954
tower karst1954
tektite field1960
stone pavement1969
1943 S. W. Muller Permafrost 84 Phenomena of thermokarst. a. Cave-in lakes. b. Settling lakes. c. Cave-in and settling funnels.
1970 Globe Mag. (Toronto) 17 Jan. 4/3 Even south of the Alaska Range there is much permafrost within the forested areas which will create further problems of heat loss, permafrost melt and thermokarst development.
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