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Medical Definition of Membrana vitellina
1. The membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked ova. Synonym: ovular membrane, vitelline membrane. Sometimes used to designate the zona pellucida of a mammalian ovum. Synonym: yolk membrane. (05 Mar 2000)
Lexicographical Neighbors of Membrana Vitellina
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