Term Name:	zona pellucida
Synonyms:	oolemma, pellucid zone, striated membrane, vitelline envelope, vitelline membrane, zona pellucida - vitelline membrane, zona radiata, zona striata
Definition:	A glycoprotein membrane surrounding the plasma membrane of an oocyte. It is a vital constitutive part of the latter, external but not extraneous to it. The zona pellucida first appears in multilaminar primary oocytes.
Ontology:	Uberon Ontology [UBERON:0000086]