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Short "hint"

n. - Double-walled stage of the embryo resulting from invagination of the blastula.

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Usage examples (34)
  • The embryo in its period of most active morphogenetic movements is usually called a gastrula, but as all agree this word has no morphologic meaning anymore.
  • The young amphioxus has, at this stage, which is called the gastrula stage, a curious parallelism with such a lowly form as the
  • This stage is called the gastrula stage; ar. is the cavity of the gastrula, the archenteron; b.p. is its opening or blastopore.
  • The ovum is now what has been called a gastrula; and it is of importance to observe that probably all the Metazoa pass through this stage.
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