zona pellucida

(Pronunciation -تلفظ سنیۓ ) US:

Slow

Normal

Noun: zona pellucida

1. zona pellucida
Thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus

Generic Words:

zona, zone

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(فلکیات) سورج گرہن سے قبل ایک آسمانی لاش کی گمشدگی

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