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zona pellucida

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.05 sec.
zo·na pel·lu·ci·da  (zn p-ls-d, pl-y-)
n.
The thick, solid, transparent outer membrane of a developed mammalian ovum. Also called oolemma.
[New Latin zna pellcida : Latin zna, belt, girdle + Latin pellcida, feminine of pellcidus, transparent.]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.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
zona, zone - (anatomy) any encircling or beltlike structure


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