| 单词 | nexine |
| 释义 | nexine/ˈnɛksɪn/ /ˈnɛksʌɪn/ /ˈnɛksiːn/Botany noun In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine). Origin |
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