英语词汇“perisperm”是什么意思，“perisperm”的读音、用法及例句翻译-烛光网

词汇	perisperm
释义	per·i·sperm AHD[pĕrʹĭ-spûrm'] D.J.[ˈperɪˌspɜːm]K.K.[ˈpɛrɪˌspɝm]n.Botany（名词）【植物学】 The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed.外胚乳：包在种子胚芽外，产生于细胞核的营养性组织
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