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from The Century Dictionary and Cyclopedia

  • In embryology, the blastula-stage or vesicularmorula which results from the blastulation of a discomorula in a meroblastic egg of discoidal segmentation. See these terms.


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  • (discoblastula). fh segmentation-cavity, dw dorsal wall of same, vw ventral wall, passing directly into the white yelk (wd) (From Duval.)

    The Evolution of Man — Volume 1


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