Term: unfertilized egg posterior region
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: posterior region
Synonyms:
Definition: Anatomical region posteriorly located on the body or body part.
Ontology: Spatial Ontology [BSPO:0000072]