C2 noun #47,856 le plus courant

A stage in the development of embryos of most animals consisting of a three-layered sac of ectoderm, mesoderm and endoderm.

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  • (noun) A stage in the development of embryos of most animals consisting of a three-layered sac of ectoderm, mesoderm and endoderm.

Meanings

  1. 1
    noun A stage in the development of embryos of most animals consisting of a three-layered sac of ectoderm, mesoderm and endoderm.
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