discogastrula

A gastrula of the type formed after the discoidal cleavage of a large-yolked ovum.

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dis·co·gas·tru·la -'gas-trə-lə n, pl -las or -lae -(.)lē, -.lī a gastrula derived from a blastoderm

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dis·co·gas·tru·la (dis″ko-gasґtroo-lə) a modified, flattened gastrula formed by discoidal cleavage of a highly telolecithal egg.