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单词 gastrula
释义
Gastrula
nnoun.animaldouble-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
Hypernyms:conceptus embryo fertilized egg
Inherited Hypernyms:gastrulaembryoanimalorganismliving thingwholeobjectphysical entityentity
Part Meronyms:archenteron
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更新时间:2024/11/11 12:55:15