frozen soil; frozen ground
Refers to soil or ground that is frozen, often in cold climates or permafrost regions. Used in scientific, agricultural, and news contexts.
A mammoth fossil was discovered in the frozen soil of Siberia.
凍土のため工事が遅れた。
Construction was delayed due to the frozen ground.
permafrost
Compound of 凍 (freeze) and 土 (soil). The reading is on'yomi for both characters.