| Name: | lens | 
|---|---|
| Synonyms: | lenses | 
| Definition: | Portion of tissue that is a transparent, biconvex structure located in the eye through which light is focused. | 
| Ontology: | Anatomy Ontology [ZFA:0000035] | 
| 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] |