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单词 cotyledon
释义 cot·y·le·don AHD[kŏt'l-ēdʹn] D.J.[ˌkɒtlˈiːdn]K.K.[ˌkɑtļˈidņ]n.(名词)cotyledonbean seed germinating
    1. Botany A leaf of the embryo of a seed plant, which, upon germination either remains in the seed or emerges, enlarges, and becomes green. Also called seed leaf 【植物学】 子叶:种子植物胚的叶片,在萌芽过程中,它或者保持在种子里或者出来,变大并变绿 也作 seed leaf
    1. Anatomy One of the lobules constituting the uterine side of the mammalian placenta, consisting mainly of a rounded mass of villi.【解剖学】 绒毛叶:组成哺乳动物胎盘的子宫边的小叶之一,主要由团装绒毛组成
Etymology语源
    1. Latin [navelwort] 拉丁语 [脐景天]
    1. from Greek kotulēdōn 源自 希腊语 kotulēdōn
    1. from kotulē [hollow object] 源自 kotulē [空心物体]
Related Forms继承用法cot'yleʹdonal cot'yleʹdonous AHD[-ēdʹn-əs] (形容词)
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更新时间:2025/4/13 14:33:34