Name:	retina
Synonyms:	retinas
Definition:	Multi-tissue structure that contains the retinal neural layer and the retinal pigmented epithelium, and develops from the optic cup.
Ontology:	Anatomy Ontology [ZFA:0000152]

Name:	copper-63
Synonyms:	(63)29Cu, (63)Cu, copper-63, Cu
Definition:	The stable isotope of copper with relative atomic mass 62.929601, 69.2 atom percent natural abundance and nuclear spin 3/2.
Ontology:	ChEBI [CHEBI:52630] ( EBI )