Term: unfertilized egg chorion
Name: unfertilized egg
Synonyms: activated oocyte
Definition: A female gamete where meiosis has progressed to metaphase II and is able to participate in fertilization. In zebrafish specified to be outside the body.
Ontology: Anatomy Ontology [ZFA:0001570]

Name: chorion
Synonyms:
Definition: The egg shell.
Ontology: Anatomy Ontology [ZFA:0000329]