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Related to perivitelline space: pronucleus, vitelline membrane, zona pellucida, perivitelline membrane
perivitelline space[¦per·ə′vid·əl‚ēn ‚spās]
(cell and molecular biology)
In mammalian ova, the space formed between the ovum and the zona pellucida at the time of maturation, into which the polar bodies are given off.