sapropel

名词 n.
中文释义
英 /ˈsapɹə(ʊ)pɛl/   

英文释义

名词 n.
  1. An aquatic sludge-like sediment rich in organic matter formed in oxygen-free areas at the bottom of lakes, seas etc. countable,uncountable
    — Another instance in which Mediterranean sapropels have provided clues about events deep within the African continent is the ‘greening’ of the Sahara about 120,000 years ago.

词形变化

sapropels plural

词源

From German Sapropel, corresponding to sapro- + Ancient Greek πηλός (pēlós, “mud, clay”).
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