英语词汇“embryo sac”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	embryo sac
释义	WordReference Random House Unabridged Dictionary of American English © 2024 em′bryo sac′, [Bot.] Botanythe megaspore of a seed-bearing plant, situated within the ovule, giving rise to the endosperm and forming the egg cell or nucleus from which the embryo plant develops after fertilization. 1870–75
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