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单词 stroma
释义

stroma /strōˈmə/

noun (pl strōmˈata)
  1. A supporting framework of connective tissue (zoology)
  2. A dense mass of hyphae in which a fungus fructification may develop (botany)
  3. The matrix of the chloroplast, in which the dark reactions of photosynthesis take place
ORIGIN: Gr strōma a bed, mattress

strōˈmal, strōmatic /-matˈik/ or strōˈmatous adjective

stromatˈolite noun (botany)

A rounded, multi-layered structure up to approx 1 metre across, found in rocks dating back at least 2800 million years, having present-day equivalents that result from the growth, under special conditions, of blue-green algae

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更新时间:2024/9/20 23:37:59