英语词汇“polar nucleus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	polar nucleus
释义	Definition of polar nucleus in English: polar nucleus noun Botany (In angiosperm reproduction) either of the two haploid nuclei which move from the poles of the embryo sac to the centre and fuse with the male gamete to form the triploid primary endosperm nucleus. Origin Late 19th century; earliest use found in Sydney Vines (1849–1934), botanist. Definition of polar nucleus in US English: polar nucleus noun Botany (In angiosperm reproduction) either of the two haploid nuclei which move from the poles of the embryo sac to the centre and fuse with the male gamete to form the triploid primary endosperm nucleus. Origin Late 19th century; earliest use found in Sydney Vines (1849–1934), botanist.
随便看	intermitter intermitting intermix intermixable intermixable intermixed intermixture intermixture intermixtures intermodal intermolecular intermontane Intermontane Region intermountain region Intermountain Region in terms in terms of in terms of in terms of (or in — terms) in terms of (or in — terms) intern internal Internal Affairs internal angle internal audit

　

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更新时间：2024/9/21 0:28:37