单词 | cotyledon |
释义 | cotyledonnoun cot·y·le·don ˌkä-tə-ˈlē-dᵊn 1 : a lobule of the mammalian placenta 2 : the first leaf or one of the first pair or whorl of leaves developed by the embryo of a seed plant or of some lower plants (such as ferns) see seedling illustration cotyledonary ˌkä-tə-ˈlē-də-ˌner-ē adjective |
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