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episperm

/ˈɛp.ɪ.spɜːm/

翻译: 名词,指被子植物种子外面的保护层或外壳,即种皮。

1 个条目

noun

/ˈɛp.ɪ.spɜːm/C2formalscientific
  • zh名词,指被子植物种子外面的保护层或外壳,即种皮。

A noun referring to the protective outer layer or covering of seeds in flowering plants.

  1. Seed coatC2formalscientific

    The protective outer layer of a seed, derived from the integuments of the ovule.

    zh种皮

    • The episperm protects the embryo from physical damage and dehydration.
    • In many seeds, the episperm is hard and impermeable to water.
    • Botanists study the structure of the episperm to understand seed dormancy.

    同义词testa

词形
  • episperms plural form
  • episperms' possessive plural form
  • episperm's possessive singular form