karst

noun 0.611

karstification

noun 0.575

permafrost

noun 0.554

therm

noun 0.545

ground ice

noun 0.544

cryosphere

noun 0.535

geotherm

noun 0.531

thermograph

noun 0.523

thermocline

noun 0.516

thermotherapy

noun 0.515

thermoscope

noun 0.515

thermos

noun 0.513

thaw

noun 0.512

thermal desorption

noun 0.510

caldera

noun 0.506

thermography

noun 0.506

thermochronology

noun 0.502