凍土(とうど)

とうど
noun
frozen ground, permafrost
geography
1. frozen ground, frozen soil, permafrost
Ground that is frozen, either temporarily in winter or permanently in cold regions. Often used in the compound 永久凍土 (permafrost).
永久(えいきゅう)凍土(とうど)が溶(と)けている。
The permafrost is melting.
永久凍土 = permafrost
北極(ほっきょく)には広大(こうだい)な凍土(とうど)が広(ひろ)がっている。
Vast stretches of frozen ground spread across the Arctic.
地球(ちきゅう)温暖化(おんだんか)で永久(えいきゅう)凍土(とうど)が急速(きゅうそく)に減(へ)っている。
Due to global warming, permafrost is rapidly decreasing.

凍土(とうど) refers to ground or soil that is frozen, whether seasonally or permanently. In everyday Japanese, it most often appears in the compound 永久(えいきゅう)凍土(とうど) (permafrost), particularly in discussions of climate change and Arctic environments.

Common collocations

Compounds

  • 永久(えいきゅう)凍土(とうど) (permafrost — permanently frozen ground)
  • 凍土(とうど)壁(へき) (frozen soil wall — used in construction to block groundwater)

Usage

  • Most commonly encountered in the compound 永久(えいきゅう)凍土(とうど)
  • Used in geography, environmental science, and climate change discussions
  • The kanji 凍(とう) means "freeze" and 土(ど) means "earth/soil"
general
Added 2026.3.25 23:46 · Revised 2026.9.2 13:01
19000/19451_toudo