zona pellucida Hear it!

zona pellucida Definition

zona pel·lu·cida (zō′nə pə lo̵̅o̅′si də)

noun pl. zo′·nae pel·lu′·ci·daezō′nē pə lo̵̅o̅′si dē

the clear, thick outer membrane that surrounds and protects the mature egg of a mammal: it has receptors on its surface that bind with sperm cells

zona pellucida Usage Examples

Converse of object

  • call: The egg is surrounded by a special coat called the zona pellucida.

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