Term: optic cup anatomical margin
Name: optic cup
Synonyms: eye cup
Definition: Multi-tissue structure that is comprised of neural and non-neural epithelial layers which will form the retina and retinal pigmented epithelium of the mature eye.
Ontology: Anatomy Ontology [ZFA:0001202]

Name: anatomical margin
Synonyms: edge, margin
Definition: Fiat anatomical region extending a short distance from the boundary of an object inwards.
Ontology: Spatial Ontology [BSPO:0000006]