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Medical Term:

segmentation nucleus

 

Definition:

  1. the compound nucleus in the fertilized oocyte, formed by conjugation of the nuclei of the oocyte and sperm (female and male pronuclei);
  2. the zygote nucleus after it commences the first cleavage division.
© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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