Endoderm

[endәudә:m]

解释:

(noun.) the inner germ layer that develops into the lining of the digestive and respiratory systems.

编辑:希娜--From WordNet

解释:

(n.) The inner layer of the skin or integument of an animal.

(n.) The innermost layer of the blastoderm and the structures derived from it; the hypoblast; the entoblast. See Illust. of Ectoderm.

整理:利亚

解释:

n. the inner layer of the Blastoderm (q.v.).

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