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/ˈɡæstɹələ/ · noun
(embryology) A stage in the development of embryos of most animals consisting of a three-layered sac of ectoderm, mesoderm and endoderm..
Use gastrula when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Gastrula means (embryology) A stage in the development of embryos of most animals consisting of a three-layered sac of ectoderm, mesoderm and endoderm..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use gastrula where its definition matches the intended context.
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