† periblastulan.
Embryology. Obsolete. rare.
A blastula arising from cleavage that takes place at the surface of the ovum. Cf. pericytula n., perigastrula n., perimonerula n., perimorula n.
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1876 E. R. Lankester in Q. Jrnl. Microsc. Sci. 16 63 In such cases the fertilised egg passes at once to the Periblastula stage, and cannot be said to exhibit either a Peri-monerula or Peri-cytula, or Peri-morula stage.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2020).
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