1. A plant whose seed contains more than two cotyledons. 
   多子叶植物种子含有两片以上子叶的一种植物
2. (of a flowering plant) having two cotyledons in the seed. 
   （指开花植物）种子里有两个子叶。
3. A flowering plant with two embryonic seed leaves or cotyledons that usually appear at germination. 
   双子叶植物具有两片胚籽的或通常在萌芽上有双子叶的花卉植物
4. family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination. 
   开花植物中种子有两个子叶（胚胎叶）显现在萌芽时期的一科。
5. genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination. 
   开花植物的一个属，种子具两片子叶（胚芽），萌芽时出现。

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• 1. 背倚子叶
  incumbent anther 内曲花药...incumbent cotyledons 背倚子叶...incumbent radicle 内曲胚根
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