Segmentation nucleus

(Biol.)

the body formed by fusion of the male and female pronucleus in an impregnated ovum. See the Note under Pronucleus.

segmentation nucleus

seg·men·ta·tion nu·cle·us

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.

segmentation nucleus

The cell nucleus of a zygote formed by fusion of the male and female pronuclei.See also: nucleus

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