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polar body
(redirected from Polar bodies)

    Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia 0.02 sec.
polar body
n.
Either of two small cells formed by the ovum during its maturation, the first usually released just before ovulation and the second not until after the ovum has been discharged from the ovary and penetrated by a sperm cell.
polar body,
one of the small cells produced during the two meiotic divisions in the maturation of a female gamete, or ovum. Polar bodies are nonfunctional and incapable of being fertilized. See also oogenesis.


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