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词汇 peridium
释义

Definition of peridium in English:

peridium

nounPlural peridia pɪˈrɪdɪəmpəˈridēəm
Botany

  • The outer skin of a sporangium or other fruiting body of a fungus.

    〔植〕（真菌的）孢囊被；包被

    Example sentencesExamples
    • Numerous golden sporangia with persistent peridia still intact formed on the bark surface and on mosses.
    • This is an example of a peridium, a rather vague term that includes any shell or membrane that encloses spores - for example, the visible outer membrane of a puffball.

Origin

Early 19th century: from Greek pēridion, literally 'small wallet', diminutive of pēra.

Definition of peridium in US English:

peridium

nounpəˈridēəm
Botany

  • The outer skin of a sporangium or other fruiting body of a fungus.

    〔植〕（真菌的）孢囊被；包被

    Example sentencesExamples
    • This is an example of a peridium, a rather vague term that includes any shell or membrane that encloses spores - for example, the visible outer membrane of a puffball.
    • Numerous golden sporangia with persistent peridia still intact formed on the bark surface and on mosses.

Origin

Early 19th century: from Greek pēridion, literally ‘small wallet’, diminutive of pēra.
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