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	WordReference Random House Unabridged Dictionary of American English © 2024 po′lar nu′cleus, [Bot.]either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus, which combines with a male nucleus to form the endosperm. 1880–85
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