permafrost

hypernyms

ground

land

soil

same-contexts

Gulag

Lauren

bore-hole

gant

ice field

interfacial

interlayer

knights-errant

moujik

multiproxy

near-surface

outback

passivation

plateaux

quake-hit

rightosphere

semi-arid

skinfold

sloshy

spiral-bound

subarctic

subsurface

tundra

winter-time