ZONA PELLUCIDA as NOUN

1. Meaning
   • 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
   Hypernyms(s) zona pellucida is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • zone (what does zone mean?)
   • zona (what does zona mean?)