英语词汇perisperm怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	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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